CALCITE
Egremont, Cumberland, Cumbria, England
9.5 × 7.4 × 2.8 cm,
$450
COLEMANITE
Boron Open Pit, Boron, Kern County, California, USA
9.5 × 5.5 × 5.5 cm,
$1,000
BARITE
New Raymer, near Stoneham, Weld County, Colorado, USA
6.5 × 6 × 4.5 cm,
$250
PYRITE
Climax Mine, Fremont Pass, Lake County, Colorado, USA
5.5 × 4.5 × 4 cm,
$850
HÜBNERITE
Sweet Home Mine, Alma, Park County, Colorado, USA
3.6 × 5.7 × 2.2 cm,
$200
AZURITE with MALACHITE
Morenci Mine, near Morenci, Shannon Mountains, Greenlee County, Arizona, USA
3 × 2.5 × 3.5 cm,
$150
STIBNITE
Kadamzhay, Fergana Valley, Osh Oblast, Kyrgyzstan
5.5 × 7 × 3.5 cm,
$450
CHALCOPYRITE
Zacatecas, Mexico
3.5 × 4 × 3 cm,
$100
PREHNITE after ANHYDRITE
Prospect Park, Passaic County, New Jersey, USA
7.5 × 5.5 × 7 cm,
$200
CHRYSOCOLLA with AZURITE
Wapaca Mine, Buena Vista, Chaffee County, Colorado, USA
9 × 13.5 × 4 cm,
$350
CHRYSOCOLLA
Wapaca Mine, Buena Vista, Chaffee County, Colorado, USA
13 × 6.5 × 5 cm,
$350