CONSIGNMENT and COLLECTION AUCTIONS - Ends July 26th

Ends Thursday, July 26th, 2012 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces and Bolivian specimens).
Be sure to check out the large Australian Opal and the big Quartz from Colorado at the end of the page!
Filter By

Ludlamite
Huanuni mine, Dalence Province, Oruro Department, Bolivia
1.2 x 1.0 x 0.4 cm
Amethyst (minor reverse scepter)
Bombori, Potosi Department, Bolivia
3.0 x 2.3 x 2.2 cm
Scorzalite (rare) (new find)
Estano Orcko mine, Machacamarca District (Colavi District), Saavedra Province, Potosu Department, Bolivia
4.8 x 3.9 x 3.1 cm
Bournonite (mined in 2003)
Machacamarca Mine, near Colavi, Potosi Department, Bolivia
3.8 x 2.8 x 2.7 cm
Vauxite (rare)
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality)
2.6 x 2.0 x 0.7 cm
Magnetite
Cerro Huanaquino, Potosi Department, Bolivia
8.5 x 4.3 x 2.2 cm
Gold on Quartz
Little Johnnie Mine (Ibex Mine), Leadville, Lake County, Colorado
1.1 x 0.6 x 0.6 cm
Mn-Calcite on Quartz (ex Brian Kosnar Collection)
Portland Mine, in the Ouray Amphitheater, east of the town of Ouray, Ouray County, Colorado
3.7 x 2.6 x 1.9 cm
Aquamarine (deep color) (ex Rich Kosnar Collection)
Sawtooth Mountains, Idaho
2.5 x 1.7 x 1.4 cm
Amazonite with Albite (ex Brian Kosnar Collection)
R. A. Kosnar Claim on Yucca Hill, Steven's Ranch, near Lake George, Park County, Colorado
3.1 x 2.9 x 2.7 cm
Prehnite (fantastic quality) (new find!)
Lower New Street, Paterson, Passaic County, New Jersey
4.1 x 1.8 x 1.2 cm
Chalcopyrite with Prehnite (ex Rich Kosnar Collection)
Summit Quarry (Houdaille Quarry), Union County, New Jersey
1.2 x 1.1 x 1.1 cm
Goldmanite (rare garnet species)
Rybnucek, Pezinok Co., Bratislava Region, Slovakia
3.1 x 2.4 x 1.2 cm
Pyrite on Quartz (ex Harold Urish and Brian Kosnar collections)
Leonard mine, Butte, Silver Bow County, Montana
5.0 x 3.3 x 2.1 cm
Grossular
Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico
1.2 x 1.2 x 1.0 cm
Stilbite
Maharashtra, India
5.3 x 3.7 x 3.5 cm
Copper with Cuprite
Bennet Brook, Cape D'Or, Cumberland Co., Nova Scotia, Canada
2.1 x 2.1 x 0.7 cm
Cinnabar with Mercury (ex Brian Kosnar Collection)
Las Cuevas Mine, Almaden, Almaden District, Ciudad Real, Castile-La Mancha, Spain
3.2 x 2.3 x 1.8 cm
Rhodochrosite
N'Chwaning I Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
2.1 x 0.9 x 0.7 cm
Quartz (large piece)
Camp Bird Mine, near the town of Ouray, Ouray County, Colorado
21.6 x 12.2 x 9.3 cm
Natrolite
Bound Brook Quarry, New Jersey
0.68 ct, 7.01 mm x 5.24 mm
Gaspeite
Australia
1.12 ct, 8.57 mm x 4.14 mm
Vivianite
Tomokoni adit, near Canutillos, Colavi, Saavedra Province, Potosi Department, 36 km NE of Potosi, Bolivia
3.6 x 2.7 x 2.7 cm
Copper pseudomorph after Aragonite with Malachite, Cuprite, Chrysocolla and Connellite
Corocoro District, Pacajes Province, La Paz Department, Bolivia
3.2 x 2.6 x 1.8 cm
Pyrite Concretion
Dongchuan District, Kunming Prefecture, Yunnan Province, China
6.3 x 5.7 x 5.1 cm
Cassiterite (gemmy and good quality)
Viloco mine, Loayza Province, La Paz Department, Bolivia
2.8 x 2.3 x 2.1 cm
Dioptase
Kimbedi, Pool Region, Republic of the Congo
6.0 x 5.6 x 3.1 cm
Precious Opal (1,051 grams!)
Coober Pedy, Coober Pedy - Everard Range Regions, South Australia, Australia
13.2 x 9.3 x 4.1 cm
Mineral Auctions
Copyright © 2025 Mineral Auctions, All Rights Reserved.
972-437-2492 x 206
Register | Login | Privacy Policy