COLEMANITE
Boraxo Pit #3, Furnace Creek Wash, near Ryan, Death Valley, Inyo County, California, USA
27 × 11 × 20 cm,
$7,500
CHALCOPYRITE with PYRITE
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
3.5 × 3 × 2.3 cm,
$750
PYRITE (repaired)
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
3 × 3 × 1.5 cm,
$350
PYRITE
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
4.5 × 4.5 × 3 cm,
$250
COLEMANITE
Initial Pit, Boron Open Pit, Boron, Kern County, California, USA
24 × 21 × 13.5 cm,
$2,500
CHALCOPYRITE
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
4 × 2.5 × 2 cm,
$600
SIDERITE with CHALCOPYRITE on QUARTZ
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
10 × 6.5 × 4 cm,
$350
PYRITE
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
3.5 × 4 × 2.5 cm,
$250
COPPER "Skull"
Houghton County, Michigan, USA
18 × 14 × 12 cm,
$2,500
SIDERITE with CHALCOPYRITE
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
4 × 3.5 × 2.5 cm,
$150
CHALCOPYRITE with PYRITE and QUARTZ
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
3.5 × 3 × 3 cm,
$600