Your Source For Fine Mineral Specimens

Filter By

Tanzanite
Merelani, Tanzania
0.50 ct, 6.15 mm x 4.27 mm
Ring, Topaz in 14K Yellow Gold
Brazil
2.0 ct (approximate weight of the stone), Ring Size = 7
Tourmaline
Mozambique
1.56 ct, 7.43 mm x 6.68 mm
Aquamarine
Brazil
2.87 ct, 14.02 mm x 7.01 mm
Scapolite
Sri Lanka
8.58 ct, 16.24 mm x 13.15 mm
"Hot" pink Tourmaline on Quartz
Stewart Mine, San Diego Co., California
7.2 x 5.4 x 2.5 cm
Bournonite (new find)
Machacamarca Mine, near Colavi, Potosi Department, Bolivia
7.8 x 7.2 x 3.8 cm
Siderite with Stannite
Siete Suyos mine, Atocha-Quechisla District, Sud Chichas Province, Potosu Department, Bolivia
2.8 x 2.1 x 1.5 cm
Fluorite
Denton mine, Hardin County, Illinois
5.0 x 4.5 x 3.7 cm
Paravauxite
Contacto vein, Siglo XX mine, Llallagua, Bustillos Province, Potosi Department, Bolivia (type locality for both species)
1.6 x 1.5 x 0.9 cm
Copper pseudomorph after Aragonite with Malachite, Cuprite and Connellite
Corocoro District, Pacajes Province, La Paz Department, Bolivia
3.7 x 3.3 x 3.2 cm
Vauxite with Franckeite on Pyrite (plus at least 7 other species!) (ultra-rare association specimen!)
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for four species)
7.8 x 7.1 x 6.2 cm
Pyrargyrite (new find)
Porco, Agua de Castilla, Antonio Quijarro Province, Potosu Department, Bolivia
2.6 x 1.5 x 1.2 cm
Amethyst (reverse scepters)
Bombori, Potosi Department, Bolivia
5.0 x 3.6 x 2.8 cm
Vivianite
Tomokoni adit, near Canutillos, Colavi, Saavedra Province, Potosi Department, 36 km NE of Potosi, Bolivia
3.8 x 2.1 x 1.8 cm
Wavellite (good quality)
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia
10.0 x 4.7 x 4.5 cm
Fluorite (mined 1977) (ex Rich Kosnar Collection)
Sweet Home mine, near Alma, Park County, Colorado
1.5 x 1.2 x 0.8 cm
Calaverite with Gold on Quartz (fine crystals) (ex Rich Kosnar Collection)
Cresson Mine, Cripple Creek, Teller County, Colorado
1.3 x 0.7 x 0.5 cm
Amazonite (ex Brian Kosnar Collection)
near Lake George, Park County, Colorado
8.2 x5 .6 x 3.8 cm
Calcite on Dolomite (ex Rich Kosnar Collection)
Billy Creek Wildlife Refuge, Ouray County, Colorado
10.6 x 7.2 x 4.6 cm
Pink Apophyllite on Datolite after Anhydrite (ex Brian Kosnar Collection)
Millington Quarry, Bernards Township, Somerset County, New Jersey
5.0 x 4.2 x 3.0 cm
Pectolite (ex Brian Kosnar Collection)
Millington Quarry, Bernards Township, Somerset County, New Jersey
7.8 x 5.9 x 5.2 cm
Rhodochrosite
Uchucchacua Mine, Oyon Province, Lima Department, Peru
5.6 x 4.7 x 3.5 cm
Barite with Sphalerite
Quiruvilca Mine, Santiago de Chuco Province, La Libertad Department, Peru
7.3 x 4.8 x 3.1 cm
Orthoclase with Biotite and Quartz
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
6.3 x 4.9 x 2.2 cm
Spessartine
Navegadora Mine, Penha do Norte, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil
3.2 x 2.7 x 2.1 cm
Morganite
Urucum mine, Galileia, Doce valley, Minas Gerais, Brazil
2.2 x 1.5 x 1.0 cm