PRE-DENVER MINERAL COLLECTION AUCTIONS (set 1 of 2) featuring OLD CLASSICS, GEM CRYSTALS and RARITIES - ends Thursday Aug 9, 2018

ends Thursday August 9, 2018
at 6:30 PM (Central Time Zone)

A wonderful selection of specimens in this week's auctions with a mix of gem crystals, classics, contemporary beauties and rare species ! We are continuing to process material from the wonderful old mineral collections of Kay Robertson along with fine minerals from numerous other collections and purchases including 1980s-90s specimens from the Ted Bartels Collection. Lots of old classics here that are hard to find at any price, let alone at auction! .


Some of the highlights from this week's include:

1. Superb cyclic-twinned CERUSSITE from Tsumeb
2. Large Erongo SCHORL w/ SMOKY QUARTZ from the Charlie Key Collection
3. Old large SULFUR & ARAGONITE
4. RHODOCHROSITES from the W.S. Logan Collection
5. Striking large New Mexico FLUORITE
6. NEW Erongo AQUAMARINE w/ FLUORITE FIND
7. Ken Roberts Collection specimens
8. Fine Swiss SMOKY QUARTZ gwindel
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Classic "Cityscape" Tourmaline
Himalaya Mine, San Diego Co., California
2.4 x 1.6 x 1.6 cm
Cinnabar & Calcite ex Ted Bartels Coll.
Jiepaiyu Mine (Shimen Mine), Changde Prefecture, Hunan Province, China
8.7 x 4.4 x 2.8 cm
Unusual large Calcite, Fluorite & Quartz combination
Mahodari, Sinnar, Nashik District, Maharashtra, India
17.0 x 15.0 x 9.5 cm
Rhodochrosite & Goethite (W.S. Logan Coll.)
Uchucchacua Mine, Oyon Province, Lima Department, Peru
6.3 x 3.8 x 3.1 cm
Goethite ps. After Pyrrhotite, Byssolite & Quartz (RARE) Robertson Coll.
Griesseren Valley, Maderanertal, Uri, Switzerland
2.8 x 2.1 x 1.5 cm
Rhodochrosite & Quartz ( Logan Coll.)
Idarado Mine, Telluride, Ouray District, San Miguel Co., Colorado
5.5 x 4.8 x 3.5 cm
Salammoniac (NEW FIND - rare locale)
Cuajone Mine, Tala, Mariscal Nieto Province, Moquegua Department, Peru
6.4 x 4.7 x 3.2 cm
Amethyst (classic locale)
Piedra Parada (Las Vigas), Veracruz, Mexico
5.8 x 5.2 x 5.0 cm
Calcite (RARE - fluorescent) Robertson Coll.
Settlingstones Mine, Fourstones, Northumberland, England
8.7 x 7.8 x 4.0 cm
Aquamarine w/ bi-colored Fluorite (NEW FIND)
Erongo Mts, Erongo Region, Namibia
6.0 x 4.5 x 4.0 cm
Fluorite on gorgeous pink Dolomite (one-time find!)
Green Fluorite Mine, Manaoshan Mtn., Chenzhou Prefect., Hunan Prov., China
9.4 x 4.8 x 3.3 cm
Descloizite on hollow Calcite stalactites (rare - Ted Bartels Coll.)
Velardena Mine, Francisco Portillo, West Camp, Santa Eulalia, Chihuahua, Mexico
10.8 x 7.8 x 5.5 cm
Gypsum (RARE) on Malachite & Cuprite (classic locale) Ted Bartels Coll.
Cape Calamita Mine, Capoliveri, Elba Island, Livorno Province, Tuscany, Italy
7.6 x 7.2 x 3.5 cm
Hubeite (Type Locality), Inesite & Fluorapophyllite ex Ted Bartels Coll.
Fengjiashan Mine (Daye copper mine), Daye Co., Hubei Province, China
6.7 x 5.2 x 2.8 cm
Kinoite with Apophyllite (Tom Hales & Ted Bartels Coll.)
Christmas Mine, Banner District, Gila Co., Arizona
7.0 x 4.8 x 3.8 cm
Berthierite (classic locale) Ted Bartels Coll.
Herja Mine, Baia Mare, Maramures Co., Romania
8.2 x 3.5 x 3.1 cm
Malachite stalactites (rare old Utah) Robertson Coll.
St. George Apex Mine, Jarvis Peak, Beaver Dam Mts, Washington Co., Utah
5.2 x 5.1 x 2.4 cm
Gemmy bi-colored Fluorite (NEW find)
Quanzhou City, Fujian Province, China
11.5 x 7.0 x 5.2 cm
Large Arsenopyrite on Pyrite (rare style) Ted Bartels Coll.
Huanzala Mine, Huallanca, Huallanca District, Bolognesi Province, Ancash, Peru
10.3 x 9.6 x 5.7 cm
Pyrochroite, Zincite, Willemite & Calcite (Ted Bartels Coll.)
Sterling Mine, Sterling Hill, Franklin mining district, Sussex Co., New Jersey
9.7 x 6.7 x 3.0 cm
Large Wulfenite plate (classic locale) Robertson Coll.
Mezica Mines, Mezica (Miess), Slovenia
11.8 x 9.3 x 5.0 cm
Topaz w/ Drusy Quartz (classic locale - 63 grams)
Xanda mine, Virgem da Lapa, Minas Gerais, Brazil
7.2 x 2.9 x 1.9 cm
Fluoro-richterite in Calcite (fluorescent) Robertson Coll.
Essonville fluoro-richterite occurrence (Essonville roadcut), Haliburton Co., Ontario, Canada
14.4 x 7.5 x 7.3 cm
Prehnite (classic Scotland) Robertson Coll.
Boyleston Quarry, Barrhead, East Renfrewshire, Scotland
10.8 x 9.0 x 7.5 cm
Cyclic-twinned Cerussite (superb)
Tsumeb Mine, Tsumeb, Namibia
4.0 x 3.8 x 2.5 cm
Mottramite ps. after Wulfenite (RARE)
Tsumeb Mine, Tsumeb, Namibia
5.0 x 4.2 x 2.8 cm
Mineral Auctions