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
- Available
- Price
- $95.00
- Locality
- Bolivar mine, Piedras Verdes, Chihuahua, Mexico
- Formula
- Pb2Bi2S5
- Size
- 6 x 3 x 2.6 cm - Sm Cabinet
Gray metallic, long slender, crystals to 3mm. There are several areas which contain the Cosalite in Quartz and Chalcopyrite marix.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- CuS
- Size
- 8 x 4.5 x 8 cm - Sm Cabinet
- Tagged
- Ore Minerals
A thick seam of foliated platy Covellite with the typical blue-purple iridescence containing about 66% Copper making it one of the chief economic ores of Copper.
Discovered in 1877, the Butte district was one of the most important mining districts in the USA. Butte has produced millions of tons of Copper and considerable amounts of Silver Gold, Lead and Zinc as well as some incredibly and highly collectible mineral specimens. During its hey day, Butte was considered the "richest hill on earth". The mineral deposits of Butte fueled the ever increasing demands of our industrial machine and in the process helped build the country to what it is today. Unfortunately, the consequence of these societal demands of the past are the environmental issues inherited today.
- Availability
- Sold
- Locality
- Musonoi mine, Kolwezi, Shaba Cu belt, DR of Congo
- Formula
- Cu(UO2)2(SiO3OH)2·6H2O
- Size
- 6.5 x 3.5 x 3 cm - Sm Cabinet
- Tagged
- copper
- Special Info
- Radioactive!!
Bright green sprays of Cuprosklodowskite with dark micro Vandenbrandeite. Radioactive!
I would prefer to deliver this to Tucson, if the buyer is going.
- Availability
- Sold
- Locality
- Musonoi mine, Kolwezi, Shaba Cu belt, DR of Congo
- Formula
- Cu(UO2)2(SiO3OH)2·6H2O
- Size
- 5 x 2.5 x 2.5 cm - Miniature
- Tagged
- copper
- Special Info
- Radioactive!!
Beautiful acicular green Cuprosklodowskite with orange, opaque Billietite. See prov. tab to view Cooke and Pinch labels.
- Availability
- Sold
- Locality
- Blue Wolf mine, Pershing Co., Nevada, United States
- Formula
- Cu2+3(WO4)2(OH)2
- Size
- 5 x 4.5 x 3.5 cm - Miniature
- Tagged
- copper
Rich green crystalline mass. This deposit is near Lovelock, and the specimen was collected in 1946.