ANKERITE on DOLOMITE with SPHALERITE
Eagle Mine, Gilman, Eagle County, Colorado, USA
6.9 × 5.3 × 2.6 cm,
$350
PYRITE ON SPHALERITE
Eagle Mine, Gilman, Eagle County, Colorado, USA
5 × 3.5 × 2.6 cm,
$150
RHODOCHROSITE
Julia Fisk Mine, Leadville, Lake County, Colorado, USA
6.2 × 2.6 × 2 cm,
$250
QUARTZ after CALCITE
Mineral Farm Mines, near Ouray, Ouray County, Colorado, USA
7.2 × 5.7 × 3.8 cm,
$150
QUARTZ after ANHYDRITE
Hematite Gulch, near Howardsville, San Juan County, Colorado, USA
8.6 × 4.5 × 3.5 cm,
$150
GALENA on SIDERITE
White Raven Mine, Ward, Boulder County, Colorado, USA
2 × 5 × 1.5 cm,
$250
GALENA on SIDERITE
White Raven Mine, Ward, Boulder County, Colorado, USA
1.2 × 6 × 1.2 cm,
$200
GOLD
Sunnyside Mine, near Silverton, San Juan County, Colorado, USA
7.4 × 5.3 × 0.7 cm,
$1,000
QUARTZ var. Onegite on GOETHITE
Douglas County, Colorado, USA
3.9 × 5.2 × 2.5 cm,
$100
GALENA on SIDERITE
White Raven Mine, Ward, Boulder County, Colorado, USA
2 × 3.2 × 2 cm,
$200
GOETHITE
Douglas County, Colorado, USA
5 × 4 × 3.3 cm,
$100