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Amethyst
Zambia
7.07 ct, 14.28 mm x 11.58 mm
Aquamarine (Cat's Eye)
Brazil
16.53 ct, 15.80 mm x 13.60 mm
Cassiterite (gemmy twins)
Viloco mine, Loayza Province, La Paz Department, Bolivia
5.0 x 3.7 x 1.3 cm
Bournonite
Machacamarca Mine, near Colavi, Dept. Potosi, Bolivia
2.9 x 2.5 x 2.0 cm
Vauxite on Wavellite
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (Type Locality)
4.4 x 1.3 x 1.3 cm
Andorite on Jamesonite
San Jose mine, Oruro City, Cercado Province, Oruro Department, Bolivia
5.1 x 3.0 x 2.6 cm
Paravauxite with Sigloite (great specimen)
Contacto vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for both species)
8.8 x 8.7 x 4.0 cm
Copper pseudomorph after Aragonite with Malachite
Corocoro District, Pacajes Province, La Paz Department, Bolivia
3.2 x 2.7 x 2.6 cm
Vivianite
Tomokoni adit, near Canutillos, Colavi, Saavedra Province, Potosi Department, 36 km NE of Potosi, Bolivia
7.3 x 3.7 x 3.5 cm
Ferberite (doubly-terminated twin!)
Tasna mine, Rosario section of Cerro Tasna, Nor Chichas Province, Potosi Department, Bolivia
5.1 x 2.9 x 1.8 cm
Siderite on Pyrite with Stannite
Siete Suyos mine, Atocha-Quechisla District, Sud Chichas Province, Potosu Department, Bolivia
2.7 x 2.3 x 1.8 cm
Topaz
Thomas Range, Juab Co., Utah, USA
3.7 x 2.3 x 1.7 cm
Natrolite with Prehnite (ex Rich Kosnar Collection)
Upper New Street Quarry, Paterson, Passaic County, New Jersey
8.0 x 6.8 x 6.7 cm
Wulfenite (intense color) (ex Rich Kosnar collection)
150' level, Red Cloud mine, Trigo Mountains, La Paz County, Arizona
2.7 x 2.2 x 1.3 cm
Vesuvianite
Hashupa, Shigar Valley, Baltistan, Nortern Areas, Pakistan
4.7 x 4.0 x 2.3 cm
Hematite ("rosette") with Quartz
Lechang Mine, Lechang County, Heyuan Prefecture, Guangdong Province, China
5.7 x 4.8 x 3.8 cm
Aquamarine on Quartz with Albite
Shigar, Skardu, Northern Areas, Pakistan
3.2 x 2.6 x 1.8 cm
Scolecite/Mesolite (New Find!)
Kannad, Aurangabad District, Maharashtra, India
12.5 x 11.0 x 8.4 cm
Dioptase (new find)
Kimbedi, Pool Region, Republic of the Congo
5.0 x 4.5 x 3.2 cm
Anatase with Rutile ("Floater") (ex Brian Kosnar Collection)
Cuiaba District, Gouveia, Minas Gerais, Southeast Region, Brazil
2.6 x 1.3 x 1.2 cm
Sphalerite (ex Brian Kosnar Collection)
Eagle mine, Gilman, Eagle County, Colorado
7.3 x 4.2 x 1.2 cm
Rhodochrosite
Babu District, Hezhou Prefecture, Guangxi Zhuang Autonomous Region, China
6.8 x 3.8 x 2.5 cm
Diopside (ex Brian Kosnar Collection)
Badakhshan Province, Afghanistan
3.4 x 3.4 x 2.3 cm
Prehnite
Bendoukou, Sandare District, Kayes Region, Mali
11.1 x 6.8 x 4.6 cm
Quartz with Calcite coated by Pyrite (ex Brian Kosnar Collection)
Idarado mine, near Telluride, San Miguel County, Colorado
10.5 x 8.8 x 3.5 cm
Chabazite with Heulandite
Wasson's Bluff, Parrsboro, Bay of Fundy, Cumberland Co., Nova Scotia, Canada
2.7 x 2.2 x 1.7 cm
Epidote (gemmy) (ex Rich Kosnar Collection)
Alchuri, Shigar Valley, Baltistan, Nortern Areas, Pakistan
4.6 x 1.6 x 0.7 cm
Quartz (ex Brian Kosnar Collection)
Lawrence Level, Osceola Mine, Cunningham Gulch, Silverton, San Juan County, Colorado
9.3 x 5.7 x 3.7 cm
Andradite (var Demantoid)
Ghazni Province, Afghanistan
5.2 x 5.0 x 3.8 cm