Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Ajax mine, Cripple Creek dist., Teller Co., Colorado, United States
- Formula
- AuTe2
- Size
- SmCabinet 7.5x5x2.5cm
- Tagged
- tellurium , gold
Several brassy goldish fragmented grains of Calaverite to 5mm occur on this specimen on one side with a coating of chalcedony or hyalite Quartz. On the flip side purple flourite as fine disseminations occur. On both sides occur a little silvery dark grey metallic crystal grains of probably Petzite. It is brittle. There is perhaps light blue Celestine. All these minerals are mentioned and described in the ore deposits section of the USGS Paper 223 titled "Geology and Ore Deposits of the Front Range, Colorado" by the Lovering & Goddard.
The Ajax mine fell within the group of independent mines later grouped within the Granite mine north of the town of Victor. The mine is bounded by the Portland and Strong mines. These mines fall with a volcanic crater which was later mineralized in three episodes. The matrix is a vuggy fine-grained and siliceous with disseminated and formless Pyrite.
- Availability
- Sold
- Locality
- Independence mine, Cripple Creek dist., Teller Co., Colorado, United States
- Formula
- AuTe2
- Size
- SmCabinet 5.5x4.5x4cm
- Tagged
- tellurium , gold
Goldish yellow to silvery crystal plates of Calaverite from 5-8mm exposed along a quartz vein of intrusive-volcanic rock. A good rich specimen with six spots showing nice, lamellar/platy crystals of brittle Calaverite. The Indendence mine, north of Victor, is located on the southeast edge of Newmont's open pit Cripple Creek mine.
Robert Waidler purchased the specimen from the mineralman.com. On that tag it is noted that the specimen originated from the George A. Koening and Seaman collections.
- Availability
- Sold
- Locality
- Mogul of Prince Albert mine, Cripple Creek, Teller Co., Colorado, United States
- Formula
- AuTe2
- Size
- SmCabinet 7x5.5x5cm
- Tagged
- tellurium , gold
- Special Info
- Raman
Superb crystals of prismatic Calaverite to 2mm in vugs. Choice specimen with several crystals, minor tiny Gold specks, and perhaps also some Sylvanite as silvery crystals throughout monzonite matrix.
- Availability
- Sold
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- KCaCu5(AsO4)4[As(OH)2O2]·2H2O
- Size
- Thumbnail 0.7x0.6x0.4cm
- Tagged
- arsenate , copper
- Special Info
- Type Locality
Deep blue crystalline areas. This is small, less than 1cm, chip out of Dr. Georg Gebhard's collection. Tennantite matrix with other secondaries unidentified. Extremely rare mineral occuring in three worldwide localities. Tsumeb is the Type Locality.
A small, less than 7mm chip!
- Availability
- Sold
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- KCaCu5(AsO4)4[As(OH)2O2]·2H2O
- Size
- Chip xxcm
- Tagged
- arsenate , copper
- Special Info
- Type Locality
Deep blue crystalline areas. There will be another larger more expensive specimen on an upcoming Tsumeb Special Edition. This is small, less than 1cm, chip out of Dr. Georg Gebhard's collection. Tennantite matrix with other secondaries unidentified.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- KCaCu5(AsO4)4[As(OH)2O2]·2H2O
- Size
- Thumbnail 2x1.3x1cm
- Tagged
- arsenate , copper
- Special Info
- Type Locality
Deep blue crystalline areas. This is small, less than 2cm, chip out of Dr. Georg Gebhard's collection. Tennantite matrix with other secondaries unidentified. Extremely rare mineral occuring in three worldwide localities. Tsumeb is the Type Locality.
