Chalcocite - image 1
Photo by Harold Moritz

Chalcocite

Y

Yale Peabody Museum
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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

Species
ChalcociteAbout Chalcocite →
SizeSmall Cabinet
Dimensions7.1 cm
Added on03/26/2026
Locality
USA, Connecticut, Bristol Copper MineRegional guide →
Publications
  • Mineralogical Record The Kevin Brown Collection page 30

Known provenance

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.