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Alexandrite
Brazil
0.08 ct, 3.0 mm x 2.4 mm
Sapphire (interesting cut)
Sri Lanka
0.60 ct, 4.10 mm
Iolite
Tanzania
1.40 ct, 9.0 mm x 6.5 mm
Pyromorphite (rare from Bolivia)
Huari-Hauri, Saavedra Province, Potosi Department, Bolivia
5.5 x 3.4 x 2.4 cm
Ferberite (twin)
Tasna mine, Rosario section of Cerro Tasna, Nor Chichas Province, Potosi Department, Bolivia
5.0 x 4.1 x 3.7 cm
Vauxite with Paravauxite on Wavellite
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (Type Locality)
1.3 x 1.3 x 0.9 cm
Siderite on Pyrite with Stannite
Siete Suyos mine, Atocha-Quechisla District, Sud Chichas Province, Potosu Department, Bolivia
5.6 x 4.0 x 3.8 cm
Paravauxite with Sigloite
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for two species)
8.7 x 5.7 x 2.0 cm
Pyrargyrite (new find)
Porco, Agua de Castilla, Antonio Quijarro Province, Potosu Department, Bolivia
4.0 x 2.0 x 1.9 cm
Red Quartz
Potosi Department, Bolivia
4.8 x 3.1 x 1.8 cm
Copper pseudomorph after Aragonite (large specimen)
Corocoro District, Pacajes Province, La Paz Department, Bolivia
4.4 x 3.4 x 2.5 cm
Goethite (superb quality) (ex Brian Kosnar Collection)
C. G. Coil claim on Goethite Hill, near Lake George, Park County, Colorado
4.0 x 4.0 x 2.1 cm
Calcite (ex Brian Kosnar Collection)
Osceola Mine, Cunningham Gulch, Silverton, San Juan County, Colorado
6.8 x 3.9 x 3.1 cm
Gold with Bustamite (rare) (ex Rich Kosnar Collection)
Idarado mine, near Telluride, San Miguel County, Colorado
5.2 x 2.4 x 1.0 cm
Smoky Quartz (ex Brian Kosnar Collection)
Lake George area, Park County, Colorado
8.0 x 3.1 x 3.0 cm
Prehnite (ex Brian Kosnar Collection)
Upper New Street Quarry, Paterson, Passaic Count, New Jersey
6.3 x 4.5 x 4.2 cm
Babingtonite (ex Rich Kosnar Collection)
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey
4.1 x 2.7 x 1.7 cm
Bixbyite with Topaz
Thomas Range, Juab Co., Utah, USA
2.0 x 1.7 x 1.7 cm
Cyanotrichite (ex Rich Kosnar Collection)
Grandview mine, Grand Canyon, Coconino County, Arizona
1.6 x 1.3 x 0.9 cm
Calcite
Sweetwater mine, Reynolds County, Ellington, Missouri
7.8 x 6.8 x 5.0 cm
Stilbite
Malmberget, Gallivare, Lappland, Sweden
10.3 x 7.9 x 3.7 cm
Pyrite
Navajun, La Rioja, Spain
6.0 x 4.8 x 4.7 cm
Amazonite
Konso, Southern Nations and Nationalities Regional State, Ethiopia
3.7 x 3.2 x 3.1 cm
Grossular (two colors)
Sandare, Nioro du Sahel Circle, Kayes Region, Mali
3.3 x 2.8 x 2.5 cm
Diopside with Grossular (ex Brian Kosnar Collection)
Badakhshan Province, Afghanistan
4.5 x 2.7 x 2.5 cm
Spessartine on Albite
Shengus, Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan
6.4 x 5.7 x 5.7 cm
Scorodite (new find)
Hezhou Prefecture, Guangxi Zhuang Autonomous Region, China
4.0 x 2.5 x 2.4 cm
Aquamarine with Schorl
Erongo Region, Namibia
3.5 x 2.5 x 1.8 cm
Smithsonite stalactite (ex Brian Kosnar Collection)
Tsumeb mine, Tsumeb, Otjikoto Region, Namibia
5.2 x 2.5 x 1.6 cm
Rhodochrosite (big specimen)
Sweet Home Mine, near Alma, Park County, Colorado
35.1 x 16.2 x 8.3 cm