CHALCOCITE
Flambeau Mine, Ladysmith, Rusk County, Wisconsin, USA
6.3 × 5.4 × 4.5 cm,
$2,500
CHLORITE after Garnet
Michigamme Mine, Michigamme, Marquette County, Michigan, USA
5.7 × 5.8 × 5.5 cm,
SOLD
PSILOMELANE
Negaunee, Marquette County, Michigan, USA
7.7 × 6.6 × 5.3 cm,
SOLD
CALCITE
Shullsburg, Lafayette County, Wisconsin, USA
7.7 × 12.5 × 6.8 cm,
SOLD
PYRITE
Blackstone Mine, Shullsburg, Lafayette County, Wisconsin, USA
5.6 × 7.3 × 7.1 cm,
SOLD
PHOSPHOSIDERITE with BARBOSALITE
Bull Moose Mine, Custer, Custer County, South Dakota, USA
8.9 × 4.7 × 4.2 cm,
SOLD
manganoan CALCITE
Montreal Mine, Montreal, Iron County, Wisconsin, USA
4.6 × 7.1 × 4.8 cm,
SOLD
SILVER on COPPER
Calumet & Hecla Mine, Calumet, Houghton County, Michigan, USA
3.8 × 8.2 × 2.5 cm,
SOLD
PYRITE with CALCITE
7950 Level, Homestake Mine, Lead, Lawrence County, South Dakota, USA
7.8 × 6.2 × 4.2 cm,
SOLD
COPPER in CALCITE
Keweenaw Peninsula, Michigan, USA
4.6 × 5.6 × 2.6 cm,
SOLD
PYRITE
Magma Mine, Superior, Pinal Mountains, Pinal County, Arizona, USA
6 × 5.6 × 4.5 cm,
SOLD