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- Availability
- Available
- Price
- $495.00
- Locality
- Carn Brea, Redruth, Cornwall, England
- Formula
- Cu5FeS4
- Size
- 6 x 4.5 x 4 cm - Sm Cabinet
- Tagged
- sulfide, copper
Iridescent blue Bornite crystals from important Cornish mine.
- 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
- Available
- Price
- $60.00
- Locality
- Pribram, Bohemia, Czech Republic
- Formula
- CuPbSbS3
- Size
- 6 x 5 x 4 cm - Sm Cabinet
- Tagged
- sulfide, copper
A 1.3cm Bournonite crystal in matrix.
- Availability
- Available
- Price
- $25.00
- Locality
- Newporth, Falmouth, Cornwall, England
- Formula
- CuPbSbS3
- Size
- 6 x 4.5 x 3 cm - Sm Cabinet
- Tagged
- sulfide, copper
Shiny silvery crystal grains to 6mm in matrix with green alterations.
- Availability
- Available
- Price
- $35.00
- Locality
- Likasi mine, Katanga, Democratic Republic of Congo
- Formula
- Cu36(NO3)2Cl6(OH)64·nH2O
- Size
- Capsule
- Tagged
- copper
- Special Info
- Type Locality
A single 2mm needle of rare Buttgenbachite.
- Availability
- Available
- Price
- $25.00
- Locality
- Bruguers, Barcelona Province, Spain
- Formula
- Ca4MgFe3+4(PO4)6(OH)4·12H2O
- Size
- 2.2 x 2 x 1.5 cm - Thumbnail
- Tagged
- phosphate
Green crystalline areas.