Olden Times in Colorado by Carlyle Channing Davis
California, USA
16 × 24 × 6 cm,
$450
De Natura Fossilium (Textbook of Mineralogy) by Georgius
New York, USA
16 × 26 × 2 cm,
$50
COLEMANITE
Boraxo Pit #3, Furnace Creek Wash, near Ryan, Death Valley, Inyo County, California, USA
27 × 11 × 20 cm,
$7,500
COLEMANITE
Initial Pit, Boron Open Pit, Boron, Kern County, California, USA
24 × 21 × 13.5 cm,
$2,500
COPPER "Skull"
Houghton County, Michigan, USA
18 × 14 × 12 cm,
$2,500
SPHALERITE with SIDERITE
Eagle Mine, Gilman, Eagle County, Colorado, USA
11 × 7 × 6 cm,
$750
BARITE
Bulldog Mine, Creede, Mineral County, Colorado, USA
17 × 11 × 10 cm,
$1,250
FLUORITE on QUARTZ
Sunnyside Mine, near Silverton, San Juan County, Colorado, USA
26 × 15 × 10 cm,
$850
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
4.5 × 4.5 × 3 cm,
$250
SIDERITE on CHALCOPYRITE and PYRITE
Alice Mine, near Idaho Springs, Clear Creek County, Colorado, USA
7.5 × 6 × 5 cm,
$1,000