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Collection Tier:
Tier 3

Rocks and Minerals ➔ Covellite, Pentlandite, Chalcocite, Malachite, Quartz

Identifier:
1997.1.58
Description:
Covellite is a copper sulfide mineral and is found in copper sulfide deposits. This specimen also includes pentlandite, chalcocite, malachite, and quartz. It was found in Butte, Montana and was donated by George W. Robinson. 

Copper Sulfur Formula: CuS
Pentlandite Formula: (FexNiy)Σ9S8
Chalcocite Formula: Cu2S
Malachite Formula: Cu2(CO3)(OH)2
Quartz Formula: SiO2
Source:
Gift Of George W. Robinson
Maker/Donor
George W. Robinson
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