Chalcocite pseudomorphs after Covellite - image 1
Photo by László Kupi

Chalcocite pseudomorphs after Covellite

Kevin Brown
Kevin Brown
Parker, TX
0 for sale·Member since 2026
Chalcocite pseudomorphs after covellite, 8.1 cm, from Butte, Silver Bow County, Montana. Collected in 1883, ex collections of August P. Pohndorf, Gerald Herfurth, Ed David, and Wouter Van Tichelen. Photo by László Kupi.

Product details

Species
Chalcocite, CovelliteAbout Chalcocite →
SizeSmall Cabinet
Dimensions8.1 cm
Added on03/26/2026
Locality
USA, Montana, Butte Mining DistrictRegional guide →
Publications
  • Mineralogical Record The Kevin Brown Collection page 197

Known provenance

DateCollectorAcquisition price
—Wouter Van TichelenNot disclosed
—Ed DavidNot disclosed
—Gerald HerfurthNot disclosed
—August P. PohndorfNot 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 Butte Mining District, Montana, USA
from Butte Mining District, Montana: steel-gray to blue-black blades, stacked pseudomorphs after covellite, rich paragenesis, and collector appeal.