This specimen is comprised of mostly
pyrite
with crystals of covellite with surface alterations to
chalcocite.
This specimen is comprised of mostly
pyrite
with embedded crystals of covellite
Origin: Leonard Mine, Butte, Silver Bow Co., Montana, Northwest USA
Sample size: 5 x 3.2 x 3 cm (top), 7.2 x 3.9 x 3.7 cm (2nd row), 4.3 x 2.5 x
1.6 cm (bottom)
Origin: Summitville, Rio Grande County, Colorado, U.S.A.
Ex. Keith Hayes collection
Sample size: 6.0 x 2.9 x 2.9 cm
Trinityminerals.com
Origin: Butte, Montana, U.S.A.
Sample size: 6 x 6 x 8.5 cm
Fine micro crystals of bluish grey covellite crystals along fracture
associated with
azurite
and
malachite
Origin: Långban, Varmland, Sweden
Sample size: 3.5 x 3 x 3 cm
Origin: Butte, Silver Bow Co., Montana, United States
Sample size: 7 x 4 x 4 cm
Covellite pseudomorph after
galena
on mudstone matrix
Origin: Aspermont, Stonewall Co., Texas, United States
Ex. kidwell collection
Sample size: small cabinet