PETZITE
Gold Hill, Gold Hill District, Boulder County, Colorado, USA
5 × 2 × 1.3 cm,
$850
CALAVERITE
Cripple Creek, Teller County, Colorado, USA
2.3 × 2.7 × 1.5 cm,
$750
GOLD with HESSITE and PETZITE
Gold Hill, Gold Hill District, Boulder County, Colorado, USA
5.7 × 5 × 2.5 cm,
$1,500
GOLD
Sunnyside Mine, near Silverton, San Juan County, Colorado, USA
4.5 × 2.4 × 0.5 cm,
$750
QUARTZ after CALCITE
Crystal Cave, Ouray, Ouray County, Colorado, USA
6.2 × 4.1 × 4.1 cm,
$250
QUARTZ var. Amethyst
Hurricane Pass, Eureka Gulch, San Juan County, Colorado, USA
2.2 × 4.8 × 1.6 cm,
$100
SAMARSKITE-(Y)
Burroughs Mine, Jefferson County, Colorado, USA
4.5 × 4 × 3 cm,
$350
GALENA with SIDERITE on SPHALERITE
Eagle Mine, Gilman, Eagle County, Colorado, USA
12.6 × 9.4 × 3.6 cm,
$250
DOLOMITE
Eagle Mine, Gilman, Eagle County, Colorado, USA
4.4 × 5 × 3.4 cm,
$450
SPHALERITE with CHALCOPYRITE and GALENA
Commodore Mine, Creede, Mineral County, Colorado, USA
5.6 × 3.7 × 2.7 cm,
$450
RHODOCHROSITE
Julia Fisk Mine, Leadville, Lake County, Colorado, USA
6.3 × 3.4 × 2.5 cm,
$200