Chalcocite - image 1
Photo by Harold Moritz

Chalcocite

Do you know Yale Peabody Museum?

Invite them to claim this profile and join EarthWonders.

Sign in to invite
Help improve this record

No owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.

Sign in to contribute
Chalcocite crystal cluster, 7.1 cm, from the Bristol copper mine, Hartford County, Connecticut—source of America’s finest chalcocite crystals. Collected around 1848 by Charles M. Wheatley (1822–1882) and now in the Yale Peabody Museum collection (no. YPM MIN. 103844), gift of an anonymous donor. Harold Moritz photo.

Product details

SpeciesChalcocite
SizeSmall Cabinet
Dimensions7.1 cm
Added on03/26/2026
LocalityUSA, Connecticut, Bristol Copper Mine
Publications
  • Mineralogical Record The Kevin Brown Collection page 30
Current owner
Yale Peabody Museum

Added by the community · Not a registered member

Previous owners
DateCollectorAcquisition price
—Charles M. WheatleyNot disclosed

Learn more

Chalcocite
Mineral guide
Learn about Chalcocite
dark steel-gray crystals with bright metallic luster and dramatic twinning; rare, well-formed specimens attract collectors and highlight sites.
Chalcocite
Regional guide
Chalcocite from Bristol Copper Mine, Connecticut, USA
from Bristol Copper Mine, Connecticut — dark, tabular crystals on calcite; historic locality valued by collectors for its classic ore-crystal form.
Locality guide
Bristol Copper Mine
Bristol Copper Mine, USA - famed for twinned, lustrous chalcocite crystals on calcite/quartz, with historic provenance and rare copper-sulfide associations.