The latest update was posted on July 31st, 2015
April 30, 2016
Newly Discovered Fluorescent "Blood Vessel" Hyalite / Opal-AN from Mexico!!
At the beginning of 2016 a friend of ours started working a claim with a few of the locals in the state of San Luis Potosi for this fine quality Hyalite Opal. It's very exciting to see specimens of this calibre coming out of the ground, as most of the Opal from this area is not nearly as attractive or fine quality as the pieces in this lot. I apologize for not having a more specific locality, but our friend doesn't want to divulge the information yet as he is trying to keep it under wraps until he feels that he was able to collect everything.
Our friend dubbed some of the colored material "blood vessel" Opal due to the interesting red/orange "capillary"-esque lines that can be seen in many of the specimens. Essentially the Opals themselves are colorless, but minute inclusions of what I'm assuming is iron oxide have created not only beautiful internal color, but the thin "blood vessel" patterns.
Like most Hyalite specimens, these new pieces from Mexico show a brilliant glowing green fluorescence under SW UV light.
Finally, for years this material was referred to as "Hyalite" Opal, but is now listed as a variety of Opal called Opal-AN. It is now defined specifically as an amorphous (often colorless) form of Opal that is found in spherical aggregates, which are often intergrown or stacked with a "bead"-like appearance. For reference, 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".
Please click here to view these specimens. Enjoy!
July 31, 2015
World Wide Gem Crystals !!
This update features a favorite, gem crystals! We have a great mix of micros to small cabinets featuring popular minerals like Tourmaline, Topaz, Beryl and even things like Spinel, Ruby, Sapphire and more! There are a few pieces from my dad's collection from the old days in Brazil, and even a few pieces that belonged to my brother, Brett. Please click here to view these specimens. Enjoy!
June 29, 2015
Gold Specimens From California !!
This update features beautiful specimens of California Gold! This classic and world famous material is well known for being some of the finest examples of Gold in the world. There are some excellent crystallized pieces along with a really cool "ribbon" Gold, plus some great matrix specimens. A wonderful selection from one of the major Gold producing regions in the world. . Please click here to view these specimens. Enjoy!
July 31, 2013
Fine Mixed World Wide Mineral Specimens !!
A great smaller sized update of fine quality mixed world wide specimens from both classic and contemporary localities. Some of the highlights include a fine Rhodochrosite from the Sweet Home Mine, along with classic from Tsumeb, plus contemporary Chinese pieces. Please click here to view these specimens. Enjoy!
June 20, 2013
More Gem Crystals from Pakistan and Afghanistan !!
An additional update of specimens to match the previous update (below) of gem crystals and other minerals from the various gem pegmatite and "Alpine"-type deposits in Pakistan and Afghanistan. I don't have to tell you how impressive and popular the minerals are from this part of the world. We have assembled over 30 pieces including some very attractive Tourmalines, Beryls and Spodumenes, along with some more Stak Nala Tourmalines. Lots of affordable and attractive pieces here. Please click here to view these specimens.
May 2, 2013
Over 50 Gold and Gold-bearing specimens from Colorado !!
Gold is a word that needs no explanation. Crystallized specimens of Gold are some of my favorite minerals in the world. Several generations of my family has mined for Gold all over Colorado! Gold played a key role in the establishment of the state of Colorado dating back to the 1850's. We have assembled over 50 pieces of Gold and Gold-bearing minerals from all over Colorado in this update with some old historic specimens and contemporary pieces alike. Most specimens are very affordable, so be sure to check them out. With the growing popularity of Gold, pieces like this are even more than collector specimens. Please click here to view this update.
August 31, 2012
A Full Page of Large Cabinet Display Specimens !!
We have updated our site with a page of beautiful and very affordably priced large cabinet display minerals from worldwide localities. A great mix of contemporary, classic, obscure and well known material. I even threw in a few pieces from my father's collection! Please click here to view these specimens.
August 6, 2012
OVER 200 Minerals Posted from Colorado !!
One of our largest updates ever! We've posted literally over 200 of specimens spanning SEVEN PAGES worth of minerals from Colorado representing classic localities, contemporary discoveries, unique material, rare minerals, hard-to-find specimens, and some of the most well known minerals from various environments, spanning ore bodies, pegmatites, sedimentary deposits, etc. The VAST majority of the pieces listed are priced BELOW $1000, making for a lot of affordable, attractive pieces to add to your collection. It's safe to say that nobody has done a Colorado update like this! Please click here to view these specimens.
July 30, 2011
10 PAGES OF MIXED BOLIVIAN MINERALS !!
Our most specimen-filled update ever! After weeks of photographing, describing and posting, we are finally ready to announce our giant Bolivian update. Over the last few years I've been culling Bolivian minerals from new finds, old collections, and things I've picked up at shows in the hopes of putting together one great big update. I've even thrown in a few treasures from my personal collection, and my father's personal colleciton. We've posted literally HUNDREDS of specimens spanning TEN PAGES worth of minerals from Bolivia representing classic localities, contemporary discoveries, unique material, rare minerals, hard-to-find specimens, and the definitive species that made Bolivia a hot bed for minerals for centuries. The VAST majority of the pieces listed are priced BELOW $1000, making for a lot of affordable, attractive pieces to add to your collection. It's safe to say that there is no better source online for Bolivian minerals than our website, and this update is just the beginning. We still have hundreds more good Bolivian pieces to post, so enjoy looking at some of our favorite minerals in the world, and stay tuned for more! Please click here if you wish to view these specimens.
June 17, 2011
World Wide Minerals - Gem Crystals, Classics & Rarities!
A great mix of beautiful display specimens from assorted world wide localities. Classics from the U.S. and abroad mixed with colorful gem crystals from around the world, along with a few unusual rarities. Please click here if you wish to view these specimens.
April 5, 2011
PREHNITE finger casts after Anhydrite from the Prospect Park Quarry, New Jersey
The Prospect Park Quarry is well known for its zeolites and associated species, including some of the best Prehnites from any locality in New Jersey (and arguably the world). During the latter half of 2010, one of the most significant discoveries in the history of this locality was made. Some of the finest quality cats (epimorphs) of Prehnite repalcing Anhydrite were discovered during this time, and we are proud to provide 2 pages worth of specimens for your consideration. Please click here if you wish to view these specimens.
Assorted Ore Minerals from Bulgaria
Bulgaria has produced some very well known sulfide and carbonate specimens from its various ore bodies. We have assembled over 20 hand-selected specimens that represent some of the best of what these localities have to offer. Please click here if you wish to view these specimens.
ANDRADITE (Demantoid) from the Sferlun Asbestos Quarry, Italy
When it comes to Alpine Garnets, the Italian specimens are among the best in the world! Whether it be Grossulars or Andradites, the Italian specimens have set the standard for the Alpine material. The Demantoids from the famous Val Malenco (Malenco Valley) are among the most well-known and highly sought after Garnets in the world. I recently acquired a small parcel of specimens from the famous locality at Sferlun which were collected approximately 30 years ago (late 1970s to early 1980s), and remained in a private collection for decades. I am told that these pieces originally came through the Magistretti collection in Italy. Please click here if you wish to view these specimens.
November 14, 2010
STEPHANITE Specimens from the Porco Mine, Bolivia
We have updated our website with a page of newly discovered specimens of the rare and highly sought after silver sulfosalt, Stephanite. These pieces represent the finest crystallized Stephanites that we have seen from Bolivia. There are only a few world localities that produce fine crystallized examples of this well know yet elusive mineral species, and these new specimens from Porco give collectors a great opportunity to add a worth while example of Stephanite to there collection. Please click here if you wish to view these specimens.
September 2, 2010
COPPER PSEUDOMORPHS from Corocoro, Bolivia
We have updated our website with a page of classic Copper pseudomorphs after Aragonite from Corocoro, Bolivia. There are several unique, interesting, and hard to find specimens in this update. These are some of the most well known pseudomorphs in the world, and exclusive to this locality. Please click here if you wish to view these specimens.
May 22, 2010
World Wide Gem Cystals
We have updated our website with a page of world wide gem crystals priced at $50 an up. Please click here if you wish to view these specimens.
Mixed World Wide Specimens
We have updated our website with several unique and classic display specimens from various world wide localities. Many of these specimens are full sized cabinet or large cabinet pieces. Please click here if you wish to view these specimens.
April 1, 2010
ANDRADITE (Demantoid and Topazolite) Garnets from Madagascar!
We have updated our website with over 50 specimens of the new and exciting Andradite (Demantoid and Topazolite) Garnets from Madagascar. These specimens are some of the finest quality, and most attractive display specimens of their respective varieties that we have seen from any world locality! Please click here if you wish to view these specimens.
February 23, 2010
Worldwide Mixed Minerals !!
We have updated our site with a great mix of classic and contemporary minerals from various world wide localities. These are all recent acquisitions, and all of them are lovely display specimens. Please click here if you wish to view these pieces.
October 19, 2009
Mixed World Wide Minerals!!
We have updated our website with a great selection of colorful, contemporary and classic worldwide mineral specimens which we purchased over the last few months. There is certainly a good mix with a variety of sizes and price ranges that would appeal to all collectors. We are working on several more updates of similar material, so stay tuned! Please click here if you wish to view these specimens.
October 11, 2009
BOURNONITE from Bolivia!!
We have just updated our website with a page of superb quality Bournonite specimens from the famous Machacamarca mine in Bolivia. The standard of quality of these specimens is not only superb from the Machacamarca mine, but virtually any mine in South America. I honestly feel that the FINEST specimens from this mine hold their own against the historic specimens from Cornwall, England, or even the contemporary specimens from the Yaogangixan mine in China. Please click here if you wish to view these specimens.
December 13, 2008
Phantom FLUORITE specimens from the
Dreamtime Claim, Teller County, Colorado !
An update of attractive phantom Fluorite specimens from the diggings at the Dreamtime claim in Teller County, Colorado. This claim is in the middle of the famous Amazonite producing district near Lake George, and these pieces would make a great addition to any collection of Fluorites, pegmatite minerals or Colorado specimens. The pieces in this update were collected in September of 2008. I am pleased to offer these specimens for the first time. They represent some of the better cabinet and small cabinet sized specimens of this material that I have seen. Please click here if you wish to view these pieces.
Champagne PETALITE crystals from the
Palelni mine, Burma !
We have updated our site with 17 specimens of fairly new, interesting and unique champagne color Petalite crystals from the Palelni mine in Burma. Typically Petalite occurs in colorless crystals, and are rarely well crystallized. There are a few good to excellent representative crystals in this lot, along with several uniquely etched crystals. Please click here if you wish to view these pieces.
December 4, 2008
MONAZITE-(Ce) from Llallagua, Bolivia !
We have updated our site with nearly 20 specimens of Monazite-(Ce) from the famous Siglo XX mine in Llallagua, Bolivia. These specimens are some of the finest I have seen from this locality with beautiful pinkish-orange twinned crystals on Quartz that perform a COLOR CHANGE in different lighting. Please click here if you wish to view these pieces.
September 22, 2008
EOSPHORITE From Pakistan!!
We have updated our site with a new find of unique and colorful Eosphorite specimens from Pakistan. Some of these specimens have very interesting associations. Please click here if you wish to view these pieces.
August 19, 2008
Mixed World Wide Minerals!! - SOLD OUT !!
ALL SPECIMENS FROM THIS UPDATE HAVE BEEN SOLD!
June 27, 2008
Mixed World Wide Minerals!!
We have updated our site with a fine mix of minerals from various world wide localities. There will be more to come of this type of material in following months. Please click here if you wish to view these pieces.
May 12, 2008
Mixed World Wide Minerals!!
We have updated our site with a fine mix of minerals from various world wide localities. Specimens are priced from around $100 to $1,000. There will be more to come of this type of material in following months. Please click here if you wish to view these pieces.
May 7, 2008
VIVIANITE from Bolivia !!
This update consists of several excellent quality VIVIANITE specimens from the exceptional find at the Tomokoni adit of the Caņutillos mine from 2004. We have seen virtually no new specimens from this locality in recent years. We held back a small parcel of specimens in the hopes that more would be found. We are now making these specimens available as it appears that this locality may never produce these specimens again. Please click here if you wish to view these pieces.
January 6, 2008
TSUMEB UPDATE, 100 Specimens !!
We have just updated our website with nine new pages of mixed Tsumeb minerals, and one page of Berg Aukus specimens. All of the specimens range from miniatures to large cabinets, starting at $50. There is a great mix here consisting of rare, unusual, attractive, and classic Tsumeb species and associations. With the Tucson show right around the corner, we wanted to give everybody a shot at this great quality material before we take it on the road. I don't have you tell you that Tsumeb is one of the most prolific, historic and renowned localities in the world, and has been the focus of countless mineral enthusiasts for decades. We are thrilled to bring you these specimens, and we hope you enjoy viewing everything. Please click on any of the following links to view the various pages in the update. Page 1, Page 2, Page 3, Page 4, Page 5, Page 6, Page 7, Page 8, Page 9 & Page 10.
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"Mineral Classics" - P. O. Box 620982, Littleton, Colorado 80123
Phone: (720) 436-2161 or (303) 523-4538 (Brian's Cell)