Fine Mineral Specimens Over $50
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- White Pine mine, Ontonagon Co., Michigan, United States
- Formula
- Cu
- Size
- 8.5 x 4.5 x 2 cm - Sm Cabinet
- Tagged
- Ore Minerals
The copper deposits of the White Pine mine are large stratiform deposits in the Nonesuch shale of upper Precambrian age. The ore is typically finely disseminated barely seen in the shale. Copper concentrations average 1-2% Copper. Higher grade zones occur in open fractures from a second pulse of mineralization and the Copper can crystallize nicely as with this specimen which shows superb micro octahedral crystals with a peculiar brassy luster. Micro Bornite (?) crystals are sprinkled about the Copper. Great showy specimen.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Bisbee, Cochise Co., Arizona, United States
- Formula
- Cu
- Size
- 16 x 9 x 5 cm - Cabinet
- Tagged
- ore mineral, native element
Large Copper specimen with crude crystals from historic mining district.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Cashin mine, Montrose Co., Colorado, United States
- Formula
- Cu
- Size
- 20 x 11 x 4 cm - Cabinet
- Tagged
- ore mineral, native element
A large specimen of about 50% Copper showing crude arborecent growth. According to Eckel 1961, USGS Bull. 1114 page 114 the Cashin mine produced masses of Copper. One Copper mass weighed 500 lbs. The Copper at this mine was often associated Covellite, Chalcocite, Bornite, Cuprite, and native Silver.
- Availability
- Available
- Price
- $75.00
- Locality
- Alcaparrosa mine, Cerritos Bayos, Calama, El Loa, Antofagasta, Chile
- Formula
- Fe3+2(SO4)3·9H2O
- Size
- 5 x 4.5 x 2.6 cm - Miniature
Deep purple, translucent mass of excellent Coquimbite with patches of gold Metavoltine.
- Availability
- Available
- Price
- $75.00
- Locality
- Alcaparrosa mine, Cerritos Bayos, Calama, El Loa, Antofagasta, Chile
- Formula
- Fe3+2(SO4)3·9H2O
- Size
- 4.5 x 4 x 3 cm - Miniature
Deep purple and translucent Coquimbite with unknow white mineral.
- Availability
- Available
- Price
- $325.00
- Reduced Price
- $195.00
- Locality
- L'Etoile du Congo mine, Lubumbashi, Haut-Katanga, DR Congo
- Formula
- Cu3PO4(OH)3
- Size
- 16 x 9.5 x 2.5 cm - Cabinet
- Tagged
- phosphate, copper
Large plate covered by hundreds of lustrous blue crystals of Cornetite from 0.5mm to 5mm. Both sides are covered. Exceptional specimen.
