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Sphalerite
Santander, Spain
1.00 ct, 6.14 mm
Dendritic Quartz
Brazil
13.21 ct, 27.99 mm x 16.37 mm
Fire Opal (cut by Brett Kosnar)
Ethiopia
0.64 ct, 6.92 mm
Sapphire
Tunduru, Tanzania
0.40 ct, 5.44 mm x 3.34 mm
Leucite (rare)
Alban Hills, Italy
0.16 ct, 3.66 mm
Emerald
Bahia, Brazil
0.32 ct, 5.20 mm x 3.28 mm
Tourmaline
Mt Mica, Maine
0.41 ct, 4.08 mm
Prehnite
Mali
1.97 ct, 7.59 mm
Zircon
Sri Lanka
0.54 ct, 6.28 mm x 3.68 mm
Hickoryite
Rodeo, Durango, Mexico
22.59 ct, 20.16 mm
Rhodolite
Tanzania
0.33 ct, 3.98 mm
Sodalite (var Hackmanite) (highly fluorscent and tenebrescent)
Kiran, Kokcha valley, Badakhshan, Afghanistan
4.0 x 3.6 x 2.8 cm
Apatite with Albite and Schorl
Shigar Valley, Skardu District, Baltistan, Northern Areas, Pakistan
7.1 x 6.4 x 4.4 cm
Descloizite (ex Rich Kosnar Collection)
Berg Aukas (Berg Aukus), Grootfontein District, Otjozondjupa Region, Namibia
8.0 x 6.7 x 4.8 cm
Magnetite
Cerro Huanaquino, Potosi Department, Bolivia
3.6 x 3.2 x 1.7 cm
Paravauxite with Sigloite
Contacto vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for both species)
3.7 x 2.7 x 1.6 cm
Valentinite (New Find!)
San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
3.2 x 3.0 x 1.1 cm
Vauxite with Paravauxite and Childrenite
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for two species)
6.8 x 6.3 x 1.5 cm
Ferberite with Arsenopyrite
Tasna mine, Rosario section of Cerro Tasna, Nor Chichas Province, Potosi Department, Bolivia
7.8 x 5.2 x 4.7 cm
Sphalerite pseudomorphs after Wurtzite with Franckeite on Quartz (new find)
San Jose Mine, Oruro, Cercado Province, Oruro Department, Bolivia
6.2 x 4.5 x 1.7 cm
Sphalerite (ex Tresa Kosnar Collection)
Patch Mine, Central City, Gilpin County, Colorado
2.9 x 2.2 x 1.6 cm
Gold on Quartz
Little Johnnie Mine (Ibex Mine), Leadville, Lake County, Colorado
1.1 x 0.8 x 0.6 cm
Quartz after Anhydrite (ex Brian Kosnar Collection)
O. S. Pocket, Ouray County, Colorado
10.3 x 6.8 x 4.3 cm
Pyromorphite (ex Harold Urish Collection)
Bunker Hill Mine, Kellogg, Coeur d'Alene District, Shoshone County, Idaho
3.7 x 3.3 x 1.6 cm
Smithsonite (ex Harold Urish Collection)
79 Mine, Hayden area, Banner District, Dripping Spring Mts, Gila County, Arizona
6.2 x 3.4 x 2.9 cm
Willemite (ex Pat Gross and Rich Kosnar Collections)
Franklin Mining District, Sussex County, New Jersey
1.7 x 1.3 x 1.1 cm
Prehnite (finger "casts" after Anhydrite) (2010 find)
Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey
7.3 x 6.5 x 3.2 cm
Rhodonite on Galena (classic material)
Broken Hill, Yancowinna County, New South Wales, Australia
3.8 x 3.0 x 1.3 cm
Columbite (ex Brian Kosnar Collection)
Linopolis, Minas Gerais, Brazil
5.5 x 5.2 x 4.8 cm
Microcline (Baveno twin)
Raikoot, Chilas, Diamer District, Northern Areas, Pakistan
10.0 x 5.4 x 4.9 cm