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Hauyne (rare)
Eifel Mts, Germany
0.02 ct, 1.53 mm
Cobaltoan Calcite
Parmea, Spain
2.25 ct, 10.3 mm x 7.7 mm
Leucite (rare)
Alban Hills, Italy
0.21 ct, 3.90 mm
Bastnasite (color change)
Zagi Mountain, Pakistan
0.27 ct, 4.73 mm x 2.93 mm
Pyrrhotite
Brazil
0.22 ct, 4.0 mm x 2.5 mm
Tsavorite Garnet (matched pair)
Kenya
0.60 ct (total weight), 4.2 mm approximately each
Quartz with GILALITE inclusions (i.e. "Paraiba Quartz")
Huanzala Mine, Huallanca, Huallanca District, Bolognesi Province, Ancash, Peru
2.30 ct, 9.00 mm
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
Rutile included Quartz (UNIQUE!)
Brazil
6.02 ct, 10.9 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