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large Native Copper (old) Dartmouth Coll.
Copper Country, Keweenaw Peninsula, Michigan
17.5 x 7.4 x 6.8 cm
Vesuvianite on Grossular (rare combo) Stoudt Coll.
Sierra de la Cruz (Lake Jaco), Coahuila, Mexico
4.4 x 4.3 x 4.0 cm
Crystallized Copper (classic Arizona)
New Cornelia Mine, Ajo, Pima Co., Arizona
4.4 x 1.9 x 1.5 cm
Sphalerite and Calcite (Ed Bancroft Coll.)
Trepca, Kosovska Mitrovica, Kosovo
5.4 x 4.4 x 3.2 cm
Earrings, Iolite in Sterling Silver (custom made and designed by Brett Kosnar)
Tanzania
11.00 ct (total carat weight - Topaz), 0.60 ct (total carat weight - Sapphires)
Sunstone (good color) (custom faceted by Allyce Kosnar)
Plush, Oregon
1.15 ct, 6.20 mm
Ring, Mandarin Spessartine in Sterling Silver (custom made and designed by Brett Kosnar)
Nigeria
1.23 ct; 6.38 mm (stone), Ring Size = 7
Fire Opal (with "Contra Luz" color flash)
Mexico
1.82 ct, 14.5 mm x 9.6 mm x 6.8 mm
Bracelet, Malachite in Sterling Silver (made and designed by Brett Kosnar)
Congo
10 ct (approx weight of stones), Gem
Titanite (Sphene) (great dispersion)
Afghanistan
1.27 ct, 7.66 mm x 5.90 mm
Vivianite
Tomokoni adit, near Canutillos, Colavi, Saavedra Province, Potosi Department, 36 km NE of Potosi, Bolivia
14.3 x 8.2 x 7.7 cm
Analcime (ex Brian Kosnar Collection)
Skookumchuck Dam, Bucoda, Thurston County, Washington
3.7 x 3.3 x 2.3 cm
Sphalerite with Augelite (rare association)
Machacamarca Mine, near Colavi, Potosi Department, Bolivia
6.3 x 5.8 x 3.8 cm
Prehnite (interesting color) (ex Brian Kosnar Collection)
Upper New Street Quarry, Paterson, Passaic Count, New Jersey
7.0 x 4.6 x 3.8 cm
Iridescent Bornite xls (old) John Calvert Coll.
Dolcoath Mine, Camborne, Camborne - Redruth - St Day District, Cornwall, England
5.3 x 4.3 x 3.9 cm
Langite (ex Brian Kosnar Collection)
Lubietova (Libethen) ore belt, Western Slovenske Rudohorie Mts, Banska Bystrica Region, Slovakia
6.2 x 4.1 x 2.7 cm
Torbernite
Musonoi Mine, Kolwezi, Shaba, Congo
2.4 x 2.1 x 1.6 cm
Painite with Ruby (super rare)
Ongaing, near Mogok, Burma (type locality)
2.8 x 2.2 x 1.6 cm
Quartz in Pyrite (classic locale)
Spruce Claim, King County, Washington
8.7 x 7.9 x 7.7 cm
Twinned Cassiterite (gemmy) Rukin Jelks Coll.
Viloco Mine (Araca mine), Loayza Prov., La Paz Dept., Bolivia
4.2 x 3.0 x 2.5 cm
Calcite included with Chalcopyrite (ex Brian Kosnar collection)
Braen's Quarry (Sam Braen's Quarry), Haledon, Passaic County, New Jersey
8.2 x 5.1 x 3.2 cm
Cylindrite (rare)
Poopo Province, Oruro Department, Bolivia (Type Locality)
4.7 x 4.6 x 4.4 cm
Boracite (rare pink color)
Alto Chapare, Chapare Province, Cochabamba Department, Bolivia
5.5 x 4.3 x 2.1 cm
Magnetite
Cerro Huanaquino, Potosi Department, Bolivia
3.9 x 2.2 x 2.0 cm
Vanadinite (ex Harold Urish Collection)
Puzzler Mine, Castle Dome District, Yuma County, Arizona
4.2 x 3.6 x 2.3 cm
Malachite (ex Brian Kosnar and Harold Urish Collections)
Copper Mountain, Morenci, Clifton-Morenci District, Shannon Mts, Greenlee County, Arizona
5.7 x 4.3 x 3.3 cm
Smoky Quartz "casts" after Laumontite
Buck Mine, Cripple Creek District, Teller County, Colorado
6.0 x 5.7 x 3.7 cm
Sphalerite with Amethyst
Commodore mine, Creede, Mineral County, Colorado
5.3 x 3.7 x 2.6 cm
Malachite ps. Azurite
Milpillas Mine, Cuitaca, Mun. de Cananea, Sonora, Mexico
5.1 x 3.7 x 2.6 cm
Copper with Cuprite
Bennet Brook, Cape D'Or, Cumberland Co., Nova Scotia, Canada
4.6 x 2.0 x 0.7 cm