Colusite with Covellite - image 1
Colusite with Covellite - image 2
Colusite with Covellite - image 3
Colusite with Covellite - image 4

Colusite with Covellite

Unknown Owner
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Brass to bronze, scattered clusters composed of subhedral to euhedral crystals of colusite to 2 mm in quartz-calcite veinlets sandwiching a thick, beautiful, iridescent blue vein of coarsely bladed covellite. Under the microscope, many well-formed, <1mm crystals of colusite can be observed. A great specimen for both species. This is old material and is seldom seen on the market today, let alone in such rich masses.

Product details

SpeciesCovellite
SizeSmall Cabinet
Dimensions6.0 x 4.5 x 3.0 cm
Added on10/23/2024
LocalityUSA, Montana, Butte Mining District

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
—The ArkenstoneNot disclosed

Learn more

Mineral guide
Learn about Covellite
CuS shows an indigo-blue metallic sheen with thin platelike crystals and rosettes; rare on matrix and highly prized, especially from Butte.
Covellite
Regional guide
Covellite from Butte Mining District, USA
from the Butte Mining District, USA - a classic copper-sulfide with gunmetal to electric indigo iridescence, hexagonal blades on matrix, highly prize…