Danzrockshop

Danzrockshop Geology Nerd, Mining Engineer, and Mineral Collector posting minerals for sale at affordable prices.

The usual Friday website update is now live! Over 30 new listings from new production hemimorphites and chromium beryls,...
11/14/2025

The usual Friday website update is now live! Over 30 new listings from new production hemimorphites and chromium beryls, to dioptase and assorted fluorites. These specimens and more are available at danzrockshop.com, link in bio

JEFFCO MINERAL SHOW November 14th-16th, 2025, Friday–Sunday, 10 am - 5pm daily, finally day 4pmThe Jeffco Mineral Show S...
11/14/2025

JEFFCO MINERAL SHOW November 14th-16th, 2025, Friday–Sunday, 10 am - 5pm daily, finally day 4pm

The Jeffco Mineral Show Strives to Bring Collector Quality Minerals to the Denver Area. We have over 30 mineral dealers travel from across the state to set up their booths at this gem and mineral show.

Jefferson County Fairgrounds 15200 W 6th Ave, Golden, CO 80401

11/13/2025

AVAILABLE ON WEBSITE $2500. Aragonite, "Birds Nest", Bisbee, Cochise County, Arizona, USA. Size: 12.5x10.5x5 cm. Here is something unusual, a Bisbee Birds Nest aragonite. These “Birds Nests” formed post mining when mineral enriched waters dripped from the ceiling to the floor coating small rocks in successive layers of aragonite forming cave pearls. The surrounding ground would also become cemented into place by the newly deposited aragonite. The resulting form was a hollow dish that was filled with white ovals which the miners likened to the appearance of a birds nest. This particular specimen was coated in plaster of paris on the back side. From the collection of Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
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ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28226
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11/12/2025

NEW KEYSTONE SALE 50% OFF WAS $1800 NOW $900. Malachite Pseudomorph after Azurite, Bisbee, Cochise County, Arizona, USA. Size: 6.4X4.0X3.8cm. Arizona is famous world wide for its massive copper deposits. Perhaps the most famous of these deposits are found adjacent to the town of Bisbee located in Cochise County. The copper deposits around Bisbee were fabulously rich and produced approximately 8 billion pounds of copper over the lifetime of its various mines (Graeme, 1981). Even more valued than the countless pounds of base and precious metals that made the miners of that era wealthy, were the aesthetically stunning mineral specimens that were produced. Bisbee has quite a variety of mineral species, with over 337 identified species according to (Graeme III, 2020). However for all the variety, the one that makes the heart race of any collector, whether novice or veteran, is a good Bisbee Azurite.

This specimen is what I would call a “fine” mineral. It has top notch luster, color, aesthetic arrangement, provenance, is from a historical mine, and is not damaged as so many of these specimens are. The chatoyancy of the malachite is top notch and a treat to rotate around watching the light reflect off the silky surface of the specimen. Really a great specimen to add to your collection if you do not have one or if you are looking to upgrade what you do have.

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
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ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 27449
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11/12/2025

AVAILABLE ON WEBSITE $500. Calcite, Reynolds County, Missouri, USA. Size: 8x7x5.5 cm. A good calcite from the Tri-State district should be on every American mineral collectors list. This piece features a perfect termination, excellent luster, and a nice transparency. Ex: Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
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ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28222
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11/12/2025

AVAILABLE ON WEBSITE $900. Calcite, Hematite, Tsumeb Mine, Oshikoto Region, Namibia. Size: 6.5x5x4.5 cm. A very aesthetic example of bright red hematite inclusions inside lustrous transparent calcite crystals from the Tsumeb mine in Namibia. I note two small spots of damage one near the edge and one small cleave. A really exemplary sample of this find. Ex: Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
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ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28220
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11/11/2025

AVAILABLE ON WEBSITE $450. Calcite, Mercenaria Clam, Okeechobee County, Florida, USA. Size: 12x9.5x6 cm. Yellow calcite crystals inside of fossilized clams from Florida. Florida does not have many collectible minerals, these calcite clams certainly rank amongst the top from the state. Thanks to Jason for identifying the clam species. Ex: Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
⁠
ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28210
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11/11/2025

NEW KEYSTONE SALE WAS $500 NOW $250. Native Copper, South Side of Pit, Flambeau Mine, Ladysmith, Rusk Co., Wisconsin, USA. Size: 11.8x6.9x1.0 cm. A very rare species from the now closed Flambeau Mine in Wisconsin. A thin wafer of copper with a nice patina. Specimen shows some bending and folding from its thin and fragile nature. The property was operated by Kennecott up through 1997 and has now been completely reclaimed and revegetated. No specimens will likely ever come from this mine again. This specimen is from the personal collection of Casey Jones who held the commercial specimen collecting contract for Flambeau. Collected by Casey Jones 1995

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
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ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠

ID: 27167
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11/11/2025

AVAILABLE ON WESBITE $350. Calcite, Twin, York, York County, Pennsylvania, USA. Size: 8.5x7.5x7 cm. Twin calcites from York county PA are well known by east coast collectors. This specimen features a twin plane that cuts across the it. The condition is excellent I note no damage outside of the contact on the bottom of the specimen where it was collected. Ex: Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
⁠
ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28213
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11/11/2025

AVAILABLE ON WEBSITE $950. Calcite, Hematite, Tsumeb Mine, Oshikoto Region, Namibia. Size: 10x6.5x4 cm. A very aesthetic example of a Tsumeb calcite with red tips caused by hematite inclusions. Tsumeb was well known to have a number of excellent calcites many of which featured various mineral inclusions. A really exemplary sample of this find. Ex: Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
⁠
ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28209
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11/10/2025

AVAILABLE ON WEBSITE $600. Calcite, Berry Materials Corp. Quarry, North Vernon, Jennings Co., Indiana, USA. Size: 5x4x4 cm. A single sharp undamaged golden calcite sitting on matrix from the famous Berry Quarry in Indiana. This specimen is twinned like almost every calcite from this locality. A Midwest classic. Ex: Richard K. Smith

AVAILABLE ON DANZROCKSHOP.COM, LINK IN BIO⁠
⁠
ONE WEEK RETURN PERIOD, PAYPAL SECURED, INTERNATIONAL ORDERS WELCOME⁠
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ID: 28216
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