Home > Copper Minerals – January 21 > MS1489 Chalcocite
Chalcocite - Sold
- Bristol copper mine
- Bristol
- Hartford County
- Connecticut
- U.S.A.
- 10.5 by 7.4 by 4.3 cm – Cabinet specimen (over 10 cm)
Chalcocite is a seemingly simple copper sulfide. The name chalcocite derives from the Greek chalco for copper. Evans (1981) discusses the crystallographic complexity of chalcocite and similar compounds.
Chalcocite here forms crystals to 1.1 cm on matrix. The hand sample matrix consists of terminated quartz crystals, mostly covered in smaller white calcite microcrystals. This specimen carries a David New label. The David New label features a handwritten R, circled, which indicates that the specimen is repaired. In our cleaning process, we have un-repaired the specimen; it is no longer repaired.