Chalcocite - image 1
Photo by Jeffrey A. Scovil

Chalcocite

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Chalcocite, 13.5 cm, from Bristol, Connecticut. Ex Samuel Penfield (1856–1906) and University of Chicago collections; Jeff Scovil photo.

Product details

SpeciesChalcocite
SizeCabinet
Dimensions13.5 cm
Added on02/13/2026
LocalityUSA, Connecticut, Bristol Copper Mine
Publications
  • Mineralogical Record Mineral Collections In American Northeast page 83
Current owner
Jim Chenard

Added by the community · Not a registered member

Previous owners
DateCollectorAcquisition price
—University of Chicago collectionsNot disclosed
—Samuel PenfieldNot 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.