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*** Welcome to Mineral Classics! Tuesday, October 23, 2018... Our database contains 2680 specimens, encompassing 191 species... Please be sure to check out our new fully searchable database feature (click on the Search Site button on the left side of the screen)




Quartz, Quartz Varieties, Opal, Chalcedony and Quartz Inclusion Gemstones

A mix of selected gemstones featuring Quartz, varieties of Quartz, Opal, Chalcedony and Quartz with inclusions.


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Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol3203a.JPG] Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol3203b.JPG]

Gemstone # AMETBOL3203
Name: Ametrine (natural bi-color Quartz)
Locality: Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia
Weight: 32.03 carats
Size: 20.74 mm
Price per Carat: $ 50.00
Price For Stone: $ 1601.50
      Cut: Quantum Octagon
Color: Purple and Yellow
Clarity: Eye Clean
Cut by Us: No
Availability: Available

Comments:

Ametrine is the naturally occurring bi-colored variety of Quartz that is only found at the Anahi Mine in Bolivia. Some material is marked as coming from Brazil, but in reality, the rough is sometimes shipped from Bolivia across the border (which is only about 40 km away) to be processed in Brazil. There is no reported discovery of Ametrine anywhere in Brazil, and the Bolivian Ametrine remains the best and frankly ONLY commercially available material on the market. The most alluring aspect of Ametrine is the fact that it shows distinct purple (AMEthyst) and yellow (ciTRINE) zoning where the purple sections are situated along the positive {r} rhombohedral faces, and the alternating yellow sections are positioned under the negative {z} rhombohedral faces. This growth forms an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. Please visit the following link for a great example of a sliced cross section of an Ametrine crystal click here. This particular gem is a superb example of faceted Ametrine as it is not only large, but it has excellent color saturation, eye-clean clarity and unique concave faceting. The name of the cut on this stone is a "Quantum Octagon", and it has some extra brilliance due to the fact that the facets on the pavilion are concave and actually are cut INTO the underside of the stone. This creates a dazzling effect, and allows a gem like Quartz - which doesn't have a terribly high refractive index - to really sparkle in even moderate lighting. Rarely do we have gems this size with such fine clarity, rich color and unique cutting. This one would make a superb addition to any gem collection or it could be set to create a world-class, one-of-a-kind pedant. It has come to my attention that the mine is not currently in production of this material and the market has quickly "dried up". Don't miss this opportunity to own a unique, colorful, large, naturally occurring gemstone that is only found in one place in the world.

To order this specimen click here




(click on the pictures to enlarge)

Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol1143a.JPG] Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol1143b.JPG]

Gemstone # AMETBOL1143
Name: Ametrine (natural bi-color Quartz)
Locality: Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia
Weight: 11.43 carats
Size: 16.73 x 12.24 mm
Price per Carat: $ 45.00
Price For Stone: $ 514.35
      Cut: Quantum Emerald
Color: Purple and Yellow
Clarity: Eye Clean
Cut by Us: No
Availability: Available

Comments:

Ametrine is the naturally occurring bi-colored variety of Quartz that is only found at the Anahi Mine in Bolivia. Some material is marked as coming from Brazil, but in reality, the rough is sometimes shipped from Bolivia across the border (which is only about 40 km away) to be processed in Brazil. There is no reported discovery of Ametrine anywhere in Brazil, and the Bolivian Ametrine remains the best and frankly ONLY commercially available material on the market. The most alluring aspect of Ametrine is the fact that it shows distinct purple (AMEthyst) and yellow (ciTRINE) zoning where the purple sections are situated along the positive {r} rhombohedral faces, and the alternating yellow sections are positioned under the negative {z} rhombohedral faces. This growth forms an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. Please visit the following link for a great example of a sliced cross section of an Ametrine crystal click here. This particular gem is a superb example of faceted Ametrine as it is not only very good sized, but it has excellent color saturation, eye-clean clarity and unique concave faceting. The name of the cut on this stone is a "Quantum Emerald", and it has some extra brilliance due to the fact that the facets on the pavilion are concave and actually are cut INTO the underside of the stone. This creates a dazzling effect, and allows a gem like Quartz - which doesn't have a terribly high refractive index - to really sparkle in even moderate lighting. Rarely do we have gems this size with such fine clarity, rich color and unique cutting. This one would make a superb addition to any gem collection or it could be set to create a beautiful piece of jewelry. It has come to my attention that the mine is not currently in production of this material and the market has quickly "dried up". Don't miss this opportunity to own a unique, colorful, large, naturally occurring gemstone that is only found in one place in the world.

To order this specimen click here




(click on the pictures to enlarge)

Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol372a.JPG] Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol372b.JPG]

Gemstone # AMETBOL372
Name: Ametrine (natural bi-color Quartz)
Locality: Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia
Weight: 3.72 carats
Size: 10.05 mm
Price per Carat: $ 40.00
Price For Stone: $ 148.80
      Cut: Quantum Round
Color: Purple and Yellow
Clarity: Eye Clean
Cut by Us: No
Availability: Available

Comments:

Ametrine is the naturally occurring bi-colored variety of Quartz that is only found at the Anahi Mine in Bolivia. Some material is marked as coming from Brazil, but in reality, the rough is sometimes shipped from Bolivia across the border (which is only about 40 km away) to be processed in Brazil. There is no reported discovery of Ametrine anywhere in Brazil, and the Bolivian Ametrine remains the best and frankly ONLY commercially available material on the market. The most alluring aspect of Ametrine is the fact that it shows distinct purple (AMEthyst) and yellow (ciTRINE) zoning where the purple sections are situated along the positive {r} rhombohedral faces, and the alternating yellow sections are positioned under the negative {z} rhombohedral faces. This growth forms an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. Please visit the following link for a great example of a sliced cross section of an Ametrine crystal click here. This particular gem is a superb example of faceted Ametrine as it is not only large, but it has excellent color saturation, eye-clean clarity and unique concave faceting. The name of the cut on this stone is a "Quantum Round", and it has some extra brilliance due to the fact that the facets on the pavilion are concave and actually are cut INTO the underside of the stone. This creates a dazzling effect, and allows a gem like Quartz - which doesn't have a terribly high refractive index - to really sparkle in even moderate lighting. Rarely do we have gems with such fine clarity, beautiful distinct bi-colored appearance and unique cutting. This one would make a nice addition to any gem collection or it could be set to create a lovely piece of jewelry. It has come to my attention that the mine is not currently in production of this material and the market has quickly "dried up". Don't miss this opportunity to own a unique, colorful, large, naturally occurring gemstone that is only found in one place in the world.

To order this specimen click here




(click on the pictures to enlarge)

Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol295a.JPG] Ametrine (natural bi-color Quartz) from Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [./gemsqtz918/ametbol295b.JPG]

Gemstone # AMETBOL295
Name: Ametrine (natural bi-color Quartz)
Locality: Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia
Weight: 2.95 carats
Size: 11.00 x 7.90 mm
Price per Carat: $ 40.00
Price For Stone: $ 118.00
      Cut: Quantum Emerald
Color: Purple and Yellow
Clarity: Eye Clean
Cut by Us: No
Availability: Available

Comments:

Ametrine is the naturally occurring bi-colored variety of Quartz that is only found at the Anahi Mine in Bolivia. Some material is marked as coming from Brazil, but in reality, the rough is sometimes shipped from Bolivia across the border (which is only about 40 km away) to be processed in Brazil. There is no reported discovery of Ametrine anywhere in Brazil, and the Bolivian Ametrine remains the best and frankly ONLY commercially available material on the market. The most alluring aspect of Ametrine is the fact that it shows distinct purple (AMEthyst) and yellow (ciTRINE) zoning where the purple sections are situated along the positive {r} rhombohedral faces, and the alternating yellow sections are positioned under the negative {z} rhombohedral faces. This growth forms an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. Please visit the following link for a great example of a sliced cross section of an Ametrine crystal click here. This particular gem is a superb example of faceted Ametrine as it is not only large, but it has excellent color saturation, eye-clean clarity and unique concave faceting. The name of the cut on this stone is a "Quantum Emerald", and it has some extra brilliance due to the fact that the facets on the pavilion are concave and actually are cut INTO the underside of the stone. This creates a dazzling effect, and allows a gem like Quartz - which doesn't have a terribly high refractive index - to really sparkle in even moderate lighting. A wonderful gem with a nice 70/30 purple/yellow color split and excellent cutting. This one would make a nice addition to any gem collection or it could be set to create an eye-catching pedant. It has come to my attention that the mine is not currently in production of this material and the market has quickly "dried up". Don't miss this opportunity to own a unique, colorful, large, naturally occurring gemstone that is only found in one place in the world.

To order this specimen click here




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Citrine (natural color) from Minas Gerais, Brazil [./gemsqtz918/citbraz1534a.JPG] Citrine (natural color) from Minas Gerais, Brazil [./gemsqtz918/citbraz1534b.JPG]

Gemstone # CITBRAZ1534
Name: Citrine (natural color)
Locality: Minas Gerais, Brazil
Weight: 15.34 carats
Size: 19.51 mm
Price per Carat: $ 40.00
Price For Stone: $ 613.60
      Cut: Millennium Hexagonal Star
Color: Yellow
Clarity: Eye Clean
Cut by Us: No
Availability: Available

Comments: We purchased this stone from a friend of ours who facets gems in the Czech Republic. He said that he obtained the piece of rough from a Brazilian dealer who told him that it was natural unheated Citrine. This is significant as most Citrine on the market usually starts as Amethyst that has been "cooked" to create the yellow / orange color. The color in this gem is much gentler and doesn't look heated to my eye. It is a gorgeous, one-of-a-kind, custom faceted stone with a concave "Millennium Hexagonal Star" cut. The stone actually has facets on the pavilion that are cut INTO the stone to create more life / brilliance in the gem. Since Quartz has a lower than average refractive index, a cut like this will make it shine in any light. With that said, the effect is somewhat three-dimensional and is very difficult to capture in a two-dimensional photograph, so take my word for it, this one is BETTER IN PERSON! A really special gem that would fit beautifully into any collection, but this one truly screams to be set into jewelry!

To order this specimen click here




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Gem Silica (Quartz / Chalcedony with Chrysocolla inclusions) from Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru [./gemsqtz918/gemsilperu1367a.JPG]

Gemstone # GEMSILPERU1367
Name: Gem Silica (Quartz / Chalcedony with Chrysocolla inclusions)
Locality: Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
Weight: 13.67 carats
Size: 27.87 x 14.27 mm
Price per Carat: $ 20.00
Price For Stone: $ 273.40
      Cut: Freeform Parallelogram Cabochon
Color: Blue, Green and White / Colorless
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments: The Lily Mine has been a source of some beautiful rough Quartz / Opal / Chalcedony material that has been the focus of many faceters and lapidaries over the last 20+ years. A friend of ours brought this one back from Peru recently and we had to snag it as the patterning was too good to pass up. This material is often sold as Gem Silica which is essentially Quartz (or in this case Chalcedony) which has inclusions of the copper silicate Chrysocolla. What's most interesting about this stone is that each band has its own distinct color. The top most band is slightly more green than the bottom band which is a bit more blue, but if you rotate the stone in different lighting, the bands will actually shift in color and sometimes will show nearly identical coloring. The bands are divided by a well-balanced white / colorless Chalcedony section in the middle that didn't receive any of the Chrysocolla inclusions to create this eye-catching stone. If you collect Quartz, inclusion gems or naturally multi-colored stones, don't miss out on this one as it's certainly the most interesting and alluring example we've seen from this mine.

To order this specimen click here




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Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) (

Gemstone # HYALMEX207
Name: Hyalite Opal (Opal-AN) ("Blood Vessel Opal")
Locality: Etienne Mine, San Luis Potosi, Mexico
Weight: 2.07 carats
Size: 9.00 x 8.95 mm
Price per Carat: $ 65.00
Price For Stone: $ 134.55
      Cut: Trillion
Color: Golden with Red Blood Vessel Inclusions
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

This is one of the few gemstones of this material that we know of. We had this stone cut from a very small parcel of rough that was deemed worthy for faceting. We hope to have more in the future, but the nature of the material does not allow for a lot of faceted stones. This gem came from rough that was discovered in the beginning of 2016 by a friend of ours who is working a claim with a few of the locals for this fine quality Opal. It's very exciting to see pieces of this quality coming out of the ground, as most of the Opal from this area is not nearly as attractive or fine quality as this piece. This "Trillion Brilliant" cut Hyalite Opal gem is translucent with a golden to orange to colorless interior, but the most important aspect of the piece is the fact that it shows tiny red capillary-like inclusions of iron oxide just below the surface, which has given this material the nickname "Blood Vessel Opal". If you look closely you can see the tiny fibrous inclusions that have an almost organic appearance. This is truly unique and interesting Opal and we've never seen anything like it. We're proud to be the first ones to bring it to the public. One of the great aspects of the material is that unlike a lot of Mexican Opal, and Opal in general for that matter, this particular Opal is incredibly durable and strong, and doesn't fall apart, crumble or chip when cut and / or polished. This is significant because these gems will make great centerpieces for jewelry! Lastly, like most Hyalite specimens, this piece shows a brilliant green fluorescence under SW UV light as you can see in the second photo. It's not often that we see such richly colored Hyalite, and considering it's from a new and very limited discovery, it's a great opportunity to purchase something that nobody else has right now. Don't miss out on this beautiful and rare gem of this well-known Opal variety. For years this material was referred to as Hyalite Opal, but is now listed as a variety of Opal called Opal-AN. This material is specifically an amorphous (often colorless) form of Opal that is found in spherical aggregates, which are often intergrown or stacked with a bead-like appearance. The listing on mindat.org states that "The 'A' in the name stands for amorphous; the subscript 'N' is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water."

To order this specimen click here




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Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) (

Gemstone # HYALMEX219
Name: Hyalite Opal (Opal-AN) ("Blood Vessel Opal")
Locality: Etienne Mine, San Luis Potosi, Mexico
Weight: 2.19 carats
Size: 9.10 mm
Price per Carat: $ 55.00
Price For Stone: $ 120.45
      Cut: Round
Color: Golden and Red with Blood Vessel Inclusi
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

This is one of the few gemstones of this material that we know of. We had this stone cut from a very small parcel of rough that was deemed worthy for faceting. We hope to have more in the future, but the nature of the material does not allow for a lot of faceted stones. This gem came from rough that was discovered in the beginning of 2016 by a friend of ours who is working a claim with a few of the locals for this fine quality Opal. It's very exciting to see pieces of this quality coming out of the ground, as most of the Opal from this area is not nearly as attractive or fine quality as this piece. This "Round Brilliant" cut Hyalite Opal gem is translucent with a golden to orange interior, but the most important aspect of the piece is the fact that it shows tiny red capillary-like inclusions of iron oxide just below the surface, which has given this material the nickname "Blood Vessel Opal". If you look closely you can see the tiny fibrous inclusions that have an almost organic appearance. This is truly unique and interesting Opal and we've never seen anything like it. We're proud to be the first ones to bring it to the public. One of the great aspects of the material is that unlike a lot of Mexican Opal, and Opal in general for that matter, this particular Opal is incredibly durable and strong, and doesn't fall apart, crumble or chip when cut and / or polished. This is significant because these gems will make great centerpieces for jewelry! It's not often that we see such richly colored Hyalite, and considering it's from a new and very limited discovery, it's a great opportunity to purchase something that nobody else has right now. Don't miss out on this beautiful and rare gem of this well-known Opal variety. For years this material was referred to as Hyalite Opal, but is now listed as a variety of Opal called Opal-AN. This material is specifically an amorphous (often colorless) form of Opal that is found in spherical aggregates, which are often intergrown or stacked with a bead-like appearance. The listing on mindat.org states that "The 'A' in the name stands for amorphous; the subscript 'N' is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water."

To order this specimen click here




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Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) (

Gemstone # HYALMEX261
Name: Hyalite Opal (Opal-AN) ("Blood Vessel Opal")
Locality: Etienne Mine, San Luis Potosi, Mexico
Weight: 2.61 carats
Size: 10.43 x 7.53 mm
Price per Carat: $ 65.00
Price For Stone: $ 169.65
      Cut: Emerald
Color: Nearly Colorless with Golden Blood Vesse
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

This is one of the few gemstones of this material that we know of. We had this stone cut from a very small parcel of rough that was deemed worthy for faceting. We hope to have more in the future, but the nature of the material does not allow for a lot of faceted stones. This gem came from rough that was discovered in the beginning of 2016 by a friend of ours who is working a claim with a few of the locals for this fine quality Opal. It's very exciting to see pieces of this quality coming out of the ground, as most of the Opal from this area is not nearly as attractive or fine quality as this piece. This "Emerald Brilliant" cut Hyalite Opal gem is translucent with a nearly colorless interior, but the most important aspect of the piece is the fact that it shows tiny golden capillary-like inclusions of iron oxide just below the surface, which has given this material the nickname "Blood Vessel Opal". If you look closely you can see the tiny fibrous inclusions that have an almost organic appearance. This is truly unique and interesting Opal and we've never seen anything like it. We're proud to be the first ones to bring it to the public. One of the great aspects of the material is that unlike a lot of Mexican Opal, and Opal in general for that matter, this particular Opal is incredibly durable and strong, and doesn't fall apart, crumble or chip when cut and / or polished. This is significant because these gems will make great centerpieces for jewelry! Lastly, like most Hyalite specimens, this piece shows a brilliant green fluorescence under SW UV light as you can see in the second photo. It's not often that we see such richly colored Hyalite, and considering it's from a new and very limited discovery, it's a great opportunity to purchase something that nobody else has right now. Don't miss out on this beautiful and rare gem of this well-known Opal variety. For years this material was referred to as Hyalite Opal, but is now listed as a variety of Opal called Opal-AN. This material is specifically an amorphous (often colorless) form of Opal that is found in spherical aggregates, which are often intergrown or stacked with a bead-like appearance. The listing on mindat.org states that "The 'A' in the name stands for amorphous; the subscript 'N' is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water."

To order this specimen click here




(click on the pictures to enlarge)

Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) (

Gemstone # HYALMEX293
Name: Hyalite Opal (Opal-AN) ("Blood Vessel Opal")
Locality: Etienne Mine, San Luis Potosi, Mexico
Weight: 2.93 carats
Size: 10.05 mm
Price per Carat: $ 75.00
Price For Stone: $ 219.75
      Cut: Round
Color: Golden with Red Blood Vessel Inclusions
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

This is one of the few gemstones of this material that we know of. We had this stone cut from a very small parcel of rough that was deemed worthy for faceting. We hope to have more in the future, but the nature of the material does not allow for a lot of faceted stones. This gem came from rough that was discovered in the beginning of 2016 by a friend of ours who is working a claim with a few of the locals for this fine quality Opal. It's very exciting to see pieces of this quality coming out of the ground, as most of the Opal from this area is not nearly as attractive or fine quality as this piece. This "Round Brilliant" cut Hyalite Opal gem is translucent with a golden to orange to colorless interior, but the most important aspect of the piece is the fact that it shows tiny red capillary-like inclusions of iron oxide just below the surface, which has given this material the nickname "Blood Vessel Opal". If you look closely you can see the tiny fibrous inclusions that have an almost organic appearance. This is truly unique and interesting Opal and we've never seen anything like it. We're proud to be the first ones to bring it to the public. One of the great aspects of the material is that unlike a lot of Mexican Opal, and Opal in general for that matter, this particular Opal is incredibly durable and strong, and doesn't fall apart, crumble or chip when cut and / or polished. This is significant because these gems will make great centerpieces for jewelry! It's not often that we see such richly colored Hyalite, and considering it's from a new and very limited discovery, it's a great opportunity to purchase something that nobody else has right now. Don't miss out on this beautiful and rare gem of this well-known Opal variety. For years this material was referred to as Hyalite Opal, but is now listed as a variety of Opal called Opal-AN. This material is specifically an amorphous (often colorless) form of Opal that is found in spherical aggregates, which are often intergrown or stacked with a bead-like appearance. The listing on mindat.org states that "The 'A' in the name stands for amorphous; the subscript N is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water."

To order this specimen click here




(click on the pictures to enlarge)

Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) ( Hyalite Opal (Opal-AN) (

Gemstone # HYALMEX327
Name: Hyalite Opal (Opal-AN) ("Blood Vessel Opal")
Locality: Etienne Mine, San Luis Potosi, Mexico
Weight: 3.27 carats
Size: 10.50 mm
Price per Carat: $ 85.00
Price For Stone: $ 277.95
      Cut: Trillion
Color: Golden and Colorless with Reddish Blood
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

This is one of the few gemstones of this material that we know of. We had this stone cut from a very small parcel of rough that was deemed worthy for faceting. We hope to have more in the future, but the nature of the material does not allow for a lot of faceted stones. This gem came from rough that was discovered in the beginning of 2016 by a friend of ours who is working a claim with a few of the locals for this fine quality Opal. It's very exciting to see pieces of this quality coming out of the ground, as most of the Opal from this area is not nearly as attractive or fine quality as this piece. This "Trillion Brilliant" cut Hyalite Opal gem is translucent with a golden to colorless interior, but the most important aspect of the piece is the fact that it shows tiny reddish-orange capillary-like inclusions of iron oxide just below the surface, which has given this material the nickname "Blood Vessel Opal". If you look closely you can see the tiny fibrous inclusions that have an almost organic appearance. This is truly unique and interesting Opal and we've never seen anything like it. We're proud to be the first ones to bring it to the public. One of the great aspects of the material is that unlike a lot of Mexican Opal, and Opal in general for that matter, this particular Opal is incredibly durable and strong, and doesn't fall apart, crumble or chip when cut and / or polished. This is significant because these gems will make great centerpieces for jewelry! Lastly, like most Hyalite specimens, this piece shows a brilliant green fluorescence under SW UV light as you can see in the second photo. It's not often that we see such richly colored Hyalite, and considering it's from a new and very limited discovery, it's a great opportunity to purchase something that nobody else has right now. Don't miss out on this beautiful and rare gem of this well-known Opal variety. For years this material was referred to as Hyalite Opal, but is now listed as a variety of Opal called Opal-AN. This material is specifically an amorphous (often colorless) form of Opal that is found in spherical aggregates, which are often intergrown or stacked with a bead-like appearance. The listing on mindat.org states that "The 'A' in the name stands for amorphous; the subscript 'N' is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water."

To order this specimen click here




(click on the picture to enlarge)

Opal (Cat's Eye) from Minas Gerais, Brazil [./gemsqtz918/opalcebraz151a.JPG]

Gemstone # OPALCEBRAZ151
Name: Opal (Cat's Eye)
Locality: Minas Gerais, Brazil
Weight: 1.51 carats
Size: 9.48 x 6.79 mm
Price per Carat: $ 50.00
Price For Stone: $ 75.50
      Cut: Oval Cabochon
Color: Straw Yellow
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments: A gorgeous Cat's Eye Opal from an undisclosed locality in Minas Gerais, Brazil. Typically, it is rather difficult to obtain fine Cat's Eye Opals from any locality over 1 carat with a sharp distinct "eye" like the one seen in this stone. Like all Cat's Eye gems, this stone has thin fibrous inclusions that reflect the light to create the thin white line or "eye" in the center of the stone. It takes skill to properly orient the rough so the "eye" sits evenly in the middle of the gem and doesn't float to one side or the other. This stone is a very rare, attractive, light straw yellow color Cat's Eye gem with a very distinct eye. A bright light source was used to show off the eye in the photos, but it clearly shows up in well in indoor lighting or in sunlight. I have to say that this is one of the few cat's eye Opals I've seen in a while, especially from Brazil. They are not as common as one might think and this material doesn't get enough credit as people don't recognize how rare Cat's Eye Opals truly are.

To order this specimen click here




(click on the picture to enlarge)

Opal (Cat's Eye) from Minas Gerais, Brazil [./gemsqtz918/opalcebraz219a.JPG]

Gemstone # OPALCEBRAZ219
Name: Opal (Cat's Eye)
Locality: Minas Gerais, Brazil
Weight: 2.19 carats
Size: 10.75 x 7.86 mm
Price per Carat: $ 50.00
Price For Stone: $ 109.50
      Cut: Oval Cabochon
Color: Golden Brown
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

A gorgeous Cat's Eye Opal from an undisclosed locality in Minas Gerais, Brazil. Typically, it is rather difficult to obtain fine Cat's Eye Opals from any locality over 1 carat with a sharp distinct "eye" like the one seen in this stone. Like all Cat's Eye gems, this stone has thin fibrous inclusions that reflect the light to create the thin white line or "eye" in the center of the stone. It takes skill to properly orient the rough so the "eye" sits evenly in the middle of the gem and doesn't float to one side or the other. This stone is a very rare, attractive, golden brown color Cat's Eye gem with a very distinct eye. A bright source light was used to show off the eye in the photos, but it clearly shows up in well in indoor lighting or in sunlight. I have to say that this is one of the few cat's eye Opals I've seen in a while, especially from Brazil. They are not as common as one might think and this material doesn't get enough credit as people don't recognize how rare Cat's Eye Opals truly are.

To order this specimen click here




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Opal (with Opal (with Opal (with Opal (with

Gemstone # OPALETH100
Name: Opal (with "Contra Luz" Color Flash)
Locality: Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta Woreda, South Wello (Welo; Wollo), Amhara Region, Ethiopia
Weight: 1.00 carats
Size: 8.87 x 8.56 mm
Price per Carat: $ 300.00
Price For Stone: $ 300.00
      Cut: Trillion
Color: Colorless with Multicolor Flash
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

Recently there have been some very attractive and impressive Fire Opals coming out of Ethiopia. Originally the only locality we had was Wello / Welo / Wollo, but now we know they're specifically coming from Tsehay Mewcha. These gems rival the famous high quality Mexican stones for color, gemminess and the ever popular "Contra Luz" effect. This "Trillion Brilliant" cut gem has a beautiful colorless interior in transmitted light, but in reflected light it shows the highly desirable and seldom seen COLOR FLASH or "Contra Luz" effect with a beautiful rainbow-like array of color! The color flash is best seen in sunlight or with a strong flashlight against a black background, and this stone was photographed under a strong light to better illustrate the effect. When strongly lit, this stone shows flashes of blue, green, yellow, gold, orange, red and even purple! These flashes of color are only seen in about 1% of the Fire Opals that I have seen from Ethiopia. It's a very attractive stone, and would make a great piece of jewelry, or would stand on its own as a beautiful addition to your gem collection. Another note of significance is that this stone is FACETED, and is not a simple polished cabochon, which is significant for this material as very little of the rough has been cut into actual gemstones.

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Opal (with Opal (with Opal (with

Gemstone # OPALETH517
Name: Opal (with "Contra Luz" Color Flash)
Locality: Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta Woreda, South Wello (Welo; Wollo), Amhara Region, Ethiopia
Weight: 5.17 carats
Size: 11.86 mm
Price per Carat: $ 75.00
Price For Stone: $ 387.75
      Cut: Round Cabochon
Color: Colorless with Multicolor Flash
Clarity: Translucent
Cut by Us: No
Availability: Available

Comments:

Recently there has been some very attractive and impressive Fire Opals coming out of Ethiopia. Originally the only locality we had was Wello / Welo / Wollo, but now we know they're specifically coming from Tsehay Mewcha. These gems rival the famous high quality Mexican stones for color, gemminess and the ever popular "Contra Luz" effect. This "Round Cabochon" cut gem has a beautiful colorless interior in transmitted light, but in reflected light it shows the highly desirable and seldom seen COLOR FLASH or "Contra Luz" effect with a beautiful rainbow-like array of color! The color flash is best seen in sunlight or with a strong flashlight against a black background, and this stone was photographed under a strong light to better illustrate the effect. When strongly lit, this stone shows flashes of green, yellow, gold, orange, red and even purple! These multiple flashes of color are only seen in about 1% of the Fire Opals that I have seen from Ethiopia. It's a very attractive stone, and would make a great piece of jewelry, or would stand on its own as a beautiful addition to your gem collection.

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Opal (with Multicolor Flash) from Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta Woreda, South Wello (Welo; Wollo), Amhara Region, Ethiopia [./gemsqtz918/opaleth186a.JPG] Opal (with Multicolor Flash) from Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta Woreda, South Wello (Welo; Wollo), Amhara Region, Ethiopia [./gemsqtz918/opaleth186b.JPG] Opal (with Multicolor Flash) from Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta Woreda, South Wello (Welo; Wollo), Amhara Region, Ethiopia [./gemsqtz918/opaleth186c.JPG]

Gemstone # OPALETH186
Name: Opal (with Multicolor Flash)
Locality: Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta Woreda, South Wello (Welo; Wollo), Amhara Region, Ethiopia
Weight: 1.86 carats
Size: 11.69 x 8.00 mm
Price per Carat: $ 100.00
Price For Stone: $ 186.00
      Cut: Oval Cabochon
Color: Dark Brown with Multicolor Flash
Clarity: Opaque
Cut by Us: No
Availability: Available

Comments:

Recently there have been some very attractive and impressive Fire Opals coming out of Ethiopia. Originally the only locality we had was Wello / Welo / Wollo, but now we know they're specifically coming from Tsehay Mewcha. This "Oval Cabochon" cut gem has a rich dark brown interior color, and in reflected light it shows the highly desirable multicolor flash seen in similar Opals from Australia! The color flash is best seen in sunlight or with a strong flashlight against a black background, and this stone was photographed under a strong light to better illustrate the effect. When strongly lit, this stone shows flashes of dark blue, teal, green, yellow, gold, orange and red! It's a very attractive stone, and would make a great piece of jewelry, or would stand on its own as a beautiful addition to your gem collection.

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Fire Opal / Jelly Opal from Sawtooth Mountains, Idaho [./gemsqtz918/opalidaho381a.JPG] Fire Opal / Jelly Opal from Sawtooth Mountains, Idaho [./gemsqtz918/opalidaho381b.JPG]

Gemstone # OPALIDAHO381
Name: Fire Opal / Jelly Opal
Locality: Sawtooth Mountains, Idaho
Weight: 3.81 carats
Size: 13.62 x 10.24 mm
Price per Carat: $ 100.00
Price For Stone: $ 381.00
      Cut: Quantum Arrowhead
Color: Bright Yellow with Green Overtone
Clarity: Eye Clean / Jelly
Cut by Us: No
Availability: Available

Comments:

This is some of the most classic and lesser known Jelly or Fire Opal from anywhere in the United States. This material is actually unbelievably difficult to obtain, as the locality is in the remote Sawtooth Mountains of Idaho, which can only be reached after a 7 mile hike on foot. Very few people know about this material, but in my opinion, this particular Opal from Idaho is superior to a large majority of similar Jelly or Fire Opals from Oregon, Nevada or Mexico. This stone is a magnificent, bright, fiery lemon color (with a minor bright green flash) gem with a lively "Concave / Quantum Arrowhead" cut. The concave cutting means there are facets on the pavilion that actually are cut INTO the underside of the gem to create a brilliant return of light. A very attractive and showy gem with that typical jelly-like appearance, but it still has great crystal clarity.

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Opal ( Opal (

Gemstone # OPALFEVERMEX067
Name: Opal ("Fever Opal")
Locality: Carbonera Mine, La Trinidad, Mun. de Tequisquiapan, Queretaro, Mexico
Weight: 0.67 carats
Size: 8.07 x 4.79 mm
Price per Carat: $ 125.00
Price For Stone: $ 83.75
      Cut: Emerald
Color: Colorless and Reddish-Orange
Clarity: Eye Clean
Cut by Us: No
Availability: Available

Comments:

We picked up this stone from a friend who calls it "Fever Opal" as he said it wasn't "Fire Opal", per se, due to the mix of colors. The stone about 50% colorless, but the other half shows a brilliant reddish-orange hue creating a rarely seen two tone effect. Typically the Fire / Jelly Opals from Queretaro are a sold hue (yellow, orange or red), and a mixing of colors is rarely seen, especially in faceted material. This attractive "Emerald" cut gem really catches one's attention despite its smaller size. It has beautiful crystal clarity and isn't "fuzzy" like many stones from this locality. This one is unique and rare, and would make a nice addition to any gem collection.

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Opal in Petrified Wood from Java, Indonesia [./gemsqtz918/opalwoodind1123a.JPG]

Gemstone # OPALWOODIND1123
Name: Opal in Petrified Wood
Locality: Java, Indonesia
Weight: 11.23 carats
Size: 17.55 mm
Price per Carat: SOLD
Price For Stone: SOLD
      Cut: Round Cabochon
Color: Multicolor
Clarity: Opaque
Cut by Us: No
Availability: sold

Comments:

A newly mined piece of this exciting multicolor Precious Opal replacing / included in Petrified Wood from Java, Indonesia. This piece features pockets of highly colorful Precious Opal which show bright color flashes of green, blue, teal and purple in brownish-black Petrified Wood. The specimen is slightly polished / rounded to help the Opal really shine. The Opal honestly doesn't need a strong light to show off the color, and it's really pretty when viewed up close. These come to us from a friend who travels directly to Indonesia to buy material. It's very worthwhile for collectors because it's not just a mineral specimen, nor a gem specimen nor a fossil, but a combination of all three.

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Quartz with Actinolite Inclusions from Tsitondroina, Ikalamavony District, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzactmad1224a.JPG] Quartz with Actinolite Inclusions from Tsitondroina, Ikalamavony District, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzactmad1224b.JPG] Quartz with Actinolite Inclusions from Tsitondroina, Ikalamavony District, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzactmad1224c.JPG]

Gemstone # QTZACTMAD1224
Name: Quartz with Actinolite Inclusions
Locality: Tsitondroina, Ikalamavony District, Fianarantsoa Province, Madagascar
Weight: 12.24 carats
Size: 23.89 x 9.24 mm
Price per Carat: $ 10.00
Price For Stone: $ 122.40
      Cut: Emerald
Color: Colorless and Dark Green
Clarity: N/A
Cut by Us: No
Availability: Available

Comments: I have not seen many of these stones on the market. I am told that they are from the Tsitondroina Commune in Madagascar. I remember seeing a handful of these gems when I was a kid from this area, but they looked somewhat different. Nonetheless, this stone features acicular, dark green "needles" of Actinolite which are completely frozen inside of this colorless, gem quality "Emerald" cut Quartz stone. I think it is a very attractive and highly collectible "inclusion" stone. It was not the easiest gem to photograph, and truly looks better in person. This is the only example of this material that we have, so do not miss out on this beautiful and hard to find gem.

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Quartz with Hematite Inclusions from Itremo, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzhemmad517a.JPG] Quartz with Hematite Inclusions from Itremo, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzhemmad517b.JPG] Quartz with Hematite Inclusions from Itremo, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzhemmad517c.JPG]

Gemstone # QTZHEMMAD517
Name: Quartz with Hematite Inclusions
Locality: Itremo, Fianarantsoa Province, Madagascar
Weight: 5.17 carats
Size: 10.50 x 9.52 mm
Price per Carat: $ 25.00
Price For Stone: $ 129.25
      Cut: Shield
Color: Colorless and Reddish-Orange
Clarity: N/A
Cut by Us: No
Availability: Available

Comments: This is a fine and attractive gemstone consisting of two separate components. Ordinarily this would only be a simple colorless Quartz "Shield" cut gem were it not for the bright reddish-orange, inclusions of Hematite floating inside of it. Hematite can form in slender, acicular or "needle-like", bright red crystals (typically as inclusions inside of Quartz), but it's rarely seen from Madagascar. This particular material is sometimes referred to as "strawberry quartz". The distinguishing factor for these stones that separates the good from the great is the color of the inclusions. Typically the inclusions are a brownish color and not BRIGHT like the inclusions in this stone. If you're in the market for something unique and different, you won't be disappointed with this one!

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Quartz with Lazulite Inclusions from Marofarafara, Soavina Commune, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzlazmad382aa.JPG] Quartz with Lazulite Inclusions from Marofarafara, Soavina Commune, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzlazmad382b.JPG] Quartz with Lazulite Inclusions from Marofarafara, Soavina Commune, Fianarantsoa Province, Madagascar [./gemsqtz918/qtzlazmad382c.JPG]

Gemstone # QTZLAZMAD382
Name: Quartz with Lazulite Inclusions
Locality: Marofarafara, Soavina Commune, Fianarantsoa Province, Madagascar
Weight: 3.82 carats
Size: 12.43 x 8.59 mm
Price per Carat: $ 60.00
Price For Stone: $ 229.20
      Cut: Emerald
Color: Colorless and Royal Blue
Clarity: N/A
Cut by Us: No
Availability: Available

Comments:

This one is a first for us. We've never seen Lazulite included inside of Quartz from Madagascar. I have seen specimens with Quartz and Lazulite together from Rapid Creek in Canada and even from Serra da Mangabeira, Bahia, Brazil, but Madagascar is definitely a new one. Marofarafara is actually a well-known locality for Lazulite dating back at least 50 years, but gems are next to impossible to obtain. This "Emerald" cut gem is essentially a colorless Quartz, but if you look closely you can see small gem quality crystals of rich royal blue Lazulite floating inside. If you collect inclusions gems or just odd association stones, don't miss out on this rare and unique stone from this old classic locality for the material.

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Quartz with Trolleite Inclusions (very rare) from Serra da Vereda, Boquira, Bahia, Brazil [./gemsqtz918/qtztrollbraz676a.JPG]

Gemstone # QTZTROLLBRAZ676
Name: Quartz with Trolleite Inclusions (very rare)
Locality: Serra da Vereda, Boquira, Bahia, Brazil
Weight: 6.76 carats
Size: 18.47 x 8.73 mm
Price per Carat: $ 20.00
Price For Stone: $ 135.20
      Cut: Cushion Cabochon
Color: Off-White and Blue
Clarity: Mostly Opaque
Cut by Us: No
Availability: Available

Comments:

A really cool rarity from one of our good sources overseas. This material was analyzed and confirmed before it was polished, so it is legit. The locality at Serra da Vereda is best known for the inclusions of purplish-blue Dumortierite in Quartz, but these Trolleite stones started showing up a few years ago and are visibly different in terms of color from the Dumortierite stones. Trolleite is a fairly basic, yet very rare aluminum phosphate which often forms in soft blue masses, most notably from Sweden. This particular piece has some of the STRONGEST color for Trolleite that I have seen from any locality. It's a very stark blue hue and really stands out when viewed up close. The Trolleite is actually included in Quartz, which is the other component of this stone, as half of the gem is off-white non-included Quartz. If you collect rare gems, or rare inclusion gems, you can't afford to pass this one up. How often does one have the opportunity to purchase something so colorful and rare from any locality?

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Quartz with Trolleite Inclusions (very rare) from Serra da Vereda, Boquira, Bahia, Brazil [./gemsqtz918/qtztrollbraz726a.JPG]

Gemstone # QTZTROLLBRAZ726
Name: Quartz with Trolleite Inclusions (very rare)
Locality: Serra da Vereda, Boquira, Bahia, Brazil
Weight: 7.26 carats
Size: 17.82 x 11.02 mm
Price per Carat: $ 30.00
Price For Stone: $ 217.80
      Cut: Oval Cabochon
Color: Royal Blue
Clarity: Opaque
Cut by Us: No
Availability: Available

Comments:

A really cool rarity from one of our good sources overseas. This material was analyzed and confirmed before it was polished, so it is legit. The locality at Serra da Vereda is best known for the inclusions of purplish-blue Dumortierite in Quartz, but these Trolleite stones started showing up a few years ago and are visibly different in terms of color from the Dumortierite stones. Trolleite is a fairly basic, yet very rare aluminum phosphate which often forms in soft blue masses, most notably from Sweden. This particular piece has some of the STRONGEST color for Trolleite that I have seen from any locality. It's a very stark blue hue and really stands out when viewed up close. The Trolleite is actually included in Quartz in this "Oval Cabochon" cut gem. If you collect rare gems, or rare inclusion gems, you can't afford to pass this one up. How often does one have the opportunity to purchase something so colorful and rare from any locality?

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Quartz with Trolleite Inclusions (very rare) from Serra da Vereda, Boquira, Bahia, Brazil [./gemsqtz918/qtztrollbraz1333a.JPG]

Gemstone # QTZTROLLBRAZ1333
Name: Quartz with Trolleite Inclusions (very rare)
Locality: Serra da Vereda, Boquira, Bahia, Brazil
Weight: 13.33 carats
Size: 31.91 x 13.23 mm
Price per Carat: $ 25.00
Price For Stone: $ 333.25
      Cut: Pear Cabochon
Color: Royal Blue
Clarity: Opaque
Cut by Us: No
Availability: Available

Comments:

A really cool rarity from one of our good sources overseas. This material was analyzed and confirmed before it was polished, so it is legit. The locality at Serra da Vereda is best known for the inclusions of purplish-blue Dumortierite in Quartz, but these Trolleite stones started showing up a few years ago and are visibly different in terms of color from the Dumortierite stones. Trolleite is a fairly basic, yet very rare aluminum phosphate which often forms in soft blue masses, most notably from Sweden. This particular piece has some of the STRONGEST color for Trolleite that I have seen from any locality. It's a very stark blue hue and really stands out when viewed up close. The Trolleite is actually included in Quartz, which is the other component of this "Pear Cabochon" cut stone. If you collect rare gems, or rare inclusion gems, you can't afford to pass this one up. How often does one have the opportunity to purchase something so colorful and rare from any locality?

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