PRE-DENVER MINERAL COLLECTION AUCTIONS (set 1 of 2) featuring OLD CLASSICS, GEM CRYSTALS and RARITIES - ends Thursday Aug 16, 2018

ends Thursday August 16, 2018
at 6:30 PM (Central Time Zone)

A HUGE 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 and a few choice pieces from other collections including Steve Smale. 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. Large NEPTUNITE and Tsumeb SMITHSONITE
2. RHODOCHROSITE from the W.S. Logan Collection
3. Rare large New Mexico FLUORITE
4. Selection of Kay Robertson Old Classics!
5. Ken Roberts and Norm & Roz Pellman Collection specimens
6. NEW Erongo AQUAMARINE with SCHORL FIND
7. Rare TIGER WULFENITE with FLUORITE & WILLEMITE
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Tenorite altering to Malachite (old - rare) Robertson Coll.
Ekaterinburg, Sverdlovskaya Oblast', Middle Urals, Russia
1.3 x 1.1 x 0.5 cm
Pseudocubic Wulfenite & Mimetite (2008 find)
San Juan Poniente, Mina Ojuela, Mapimi, Durango, Mexico
5.1 x 3.4 x 1.8 cm
Pyromorphite after Cerussite on Malachite (Robertson Coll.)
Brown's Prospect, Rum Jungle, Northern Territory, Australia
2.6 x 2.5 x 2.0 cm
Hubeite (Type Locality) & Inesite, etc (Bedogne Coll.)
Fengjiashan Mine, Daye Co., Hubei Province, China
6.3 x 3.2 x 1.3 cm
Molybdenite on Quartz (Ted Bartels Coll.)
Moly Hill mine, La Motte, Quebec, Canada
2.7 x 2.3 x 2.1 cm
Large color-zoned Fluorite octahedrons (Ted Bartels Coll.)
Xianghualing Mine, Chenzhou Prefecture, Hunan Province, China
14.5 x 11.7 x 6.0 cm
Calcite (fluorescent) incl. w/ Stibnite
Xikuangshan Sb deposit, Loudi Prefecture, Hunan Province, China
7.5 x 5.3 x 4.3 cm
Sphalerite twins (excellent - classic locale)
Gyongyosoroszi, Matra Mts, Heves Co., Hungary
6.3 x 6.1 x 4.0 cm
large, important plate of Neptunite on Natrolite (Bartels Coll.)
Dallas Gem Mine, San Benito Co., California
20.5 x 16.3 x 9.7 cm
Hyalite Opal (fluorescent) Wein Coll.
Squaretop Mountain, Dalby, Western Downs Region, Queensland, Australia
11.5 x 10.3 x 5.8 cm
Native Coppers w/ Malachite & Connellite (rare - old) ex Private collection
White Pine Mine, Ontonagon Co., Michigan
7.1 x 5.9 x 0.2 cm (Largest of 5)
Hemimorphite & Smithsonite (RARE Swiss combo) Robertson Coll.
Tieftobel, Landwasser Valley, Grischun, Switzerland
3.9 x 2.7 x 1.8 cm
Calcite & Fluorite (classic locale)
Moscona Mine, Solis, Villabona mining area, Asturias, Spain
12.6 x 10.3 x 8.1 cm
Large Fluorapatite xl (Robertson Coll.)
Cerro de Mercado Mine, Durango, Durango, Mexico
6.8 x 2.8 x 2.8 cm
Gem Topaz (classic locale - 26.81 carats) Robertson Coll.
St Anne's Mine, Mwami, Karoi District, Mashonaland West, Zimbabwe
2.0 x 1.5 x 1.4 cm
Fluorite & Rubyjack Sphalerite (Ken Roberts Coll.)
Elmwood Mine, Carthage, Smith Co., Tennessee
5.5 x 4.4 x 3.2 cm
Bi-colored Fluorite on Dolomite (Pellman & Bartels Coll.)
Shangbao Mine, Hengyang Prefecture, Hunan Province, China
9.3 x 5.5 x 4.4 cm
Rhodochrosite w/ Fluorite (Belsky & W.S. Logan Coll.)
Potosi Mine, Santa Eulalia, Chihuahua, Mexico
5.3 x 3.8 x 2.3 cm
Smoky Quartz (uncommon locale) Zerfass Coll.
Governador Valadares, Minas Gerais, Brazil
12.3 x 10.7 x 8.3 cm
Mineral Auctions