Chalcocite - image 1
Photo by Jeff Scovil

Chalcocite

J

Jim Chenard
0 for sale
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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

Species
ChalcociteAbout Chalcocite →
SizeCabinet
Dimensions13.5 cm
Added on02/13/2026
Locality
USA, Connecticut, Bristol Copper MineRegional guide →
Publications
  • Mineralogical Record Mineral Collections In American Northeast page 83

Known provenance

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.