Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $45.00
- Featured
- Featured in Special Editions
- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- Cu5FeS4
- Size
- 6.5 x 6 x 2.7 cm - Sm Cabinet
- Tagged
- sulfide, copper, ore specimen
Ore specimen of Bornite with Pyrite. Butte, of course, being one of the largest Copper producing mines in the world. It is no longer in operation.
Bornite carries up to 63% copper. It is a copper red when fresh, but quickly tarnishes to a dark purplish black and often iridescent.
- 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
- Featured
- Featured in Special Editions
- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- CuS
- Size
- 5.5 x 4 x 4 cm - Sm Cabinet
- Tagged
- ore mineral, sulfide, copper
Covellite showing incredible iridescent colors. Covellite is loaded with 66% copper and is a beautiful indigo blue color. Covellite is formed in supergene of copper porphyry deposits and hydrothermal deposits, such as Butte, Montana. There is also Pyrite in the matrix giving it a nice contrasting appearance.
- Availability
- Sold
- Locality
- Leonard mine, Butte dist., Silver Bow Co., Montana, United States
- Formula
- Cu1.8S
- Size
- 4 x 2 x 1 cm - Miniature
- Tagged
- sulfide, copper
Massive bluish Digenite with Bornite along the rim in second photo.
- Availability
- Available
- Price
- $75.00
- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- Cu3AsS4
- Size
- 3.5 x 3 x 1.5 cm - Miniature
- Tagged
- sulfide, copper
Silvery, striated crystals to 5mm.
- Availability
- Available
- Price
- $25.00
- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- Cu12Sb4S13
- Size
- 2.5 x 2.5 x 2 cm - Thumbnail
- Tagged
- sulfide, copper
Dull gray and coroded Tetrahedrite with micro crystals of Bournonite.
