Sphalerite on Siderite / Locality - Eagle Mine, Gilman, Eagle County, Colorado

$250.00

Shipping to United States: Free

From my own personal collection, this cabinet sized display specimen is a quintessential Gilman sulfide / carbonate association piece. Several remarkably sharp AND lustrous crystals of reddish black Sphalerite with notably SMOOTH faces – hardly any striations at all on many faces – are gently intermixed and sitting atop a crystallized “plate” of soft beige-cream colored compressed rhombohedra or “discs” of Siderite. The piece was mined in 1978, and I actually received this piece as a gift from my father as a teenager. Great shape overall, and in better condition than most from this mine. The Eagle Mine was the center of lead and zinc mining in Colorado for a time, and produced some of the state’s most memorable mineral specimens, along with the neighboring Groundhog Mine that produced the finest Wire Gold specimens in the world extant!

ex. Brian Kosnar collection

Locality: Eagle Mine, Gilman, Eagle County, Colorado

Specimen Size: 6.2 x 3.8 x 3.1 cm (small cabinet)
Largest Sphalerite: 8 mm

Shipping from United States

Processing time

1-3 business days

Estimated shipping times

  • North America : 2 - 5 business days
  • Europe : 7 - 14 business days
  • Australia, New Zealand and Oceania : 10 - 20 business days
  • Asia Pacific : 7 - 14 business days

I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.

Customs and import taxes

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Payment Options

Secure options
  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns, exchanges, and cancellations

Just contact me within: 14 days of delivery

Ship items back to me within: 30 days of delivery

Request a cancellation within: 2 days of purchase

But please contact me if you have any problems with your order.

The following items can't be returned or exchanged

Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:

  • Custom or personalized orders

Conditions of return

Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

Questions about your order?

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