FINE MINERAL COLLECTION & INVENTORY LIQUIDATION AUCTION - Ends July 16, 2020

This week offers a fantastic mix of classic, contemporary, rare, unusual and fine specimens (plus a few gems).  We have lots of recently acquired material, plus pieces from the exciting Gary Weaver collection and don't forget Kay Robertson!  This is the auction for the not so typical mineral specimens along with plenty of your favorites.  We don't just offer the "standard 20 species", but an eclectic mix of specimens that appeal to everybody!
 
Some of the highlights from this week’s auction include:
 
1. Uniquely colored FLUORITE specimen from Pakistan
2. Beautiful gemmy SPHALERITE crystals from the Troya Mine in Spain
3. Gorgeous, gemmy, orange-pink colored TOURMALINE from Brazil
4. Fantastic AMBER from the Dominican Republic with MULTIPLE INSECT INCLUSIONS!                                                                                           
5. Excellent, RARE, large ANDORITE crystal group from Bolivia
6. Fine, classic, large, robust MUSCOVITE specimen from Connecticut
7. Rarities include PSEUDOBOLEITE on BOLEITE, WARDITE, AESCHYNITE-(Y) and PSEUDOMALACHITE
8. Plenty of cool US and European minerals and various rarities from the collection of Kay Robertson
 
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Amethyst on Fluorite (RARE locality specimen) (ex Kay Robertson Collection)
Heisser Stein Mine, Stulln, Schwandorf District, Upper Palatinate, Bavaria, Germany
5.3 x 5.1 x 3.3 cm
Winning Bid: $98
Sphalerite (small gemmy crystals) (RARE locality specimen) (ex Kay Robertson Collection)
Freiberg, Mittelsachsen, Saxony, Germany
7.3 x 5.3 x 3.8 cm
Winning Bid: $209
Pseudoboleite on Boleite (rare classic material) (ex Kay Robertson Collection)
Amelia Mine, Arroyo de la Soledad, Boleo District, Santa Rosalia, Mulege Municipality, Baja California Sur, Mexico
0.5 x 0.5 x 0.5 cm
Winning Bid: $97
Calcite (var: Lead-bearing Calcite) ("Plumbocalcite") (RARE locality specimen) (ex Kay Robertson Collection)
Concepcion del Oro, Concepcion del Oro Municipality, Zacatecas, Mexico
5.3 x 3.7 x 3.7 cm
Winning Bid: $135
Perovskite (great thumbnail) (ex Kay Robertson Collection)
San Benito County, California
2.6 x 2.3 x 1.7 cm
Winning Bid: $190
Montgomeryite with Robertsite and Whitlockite (very rare) (ex Kay Robertson Collection)
Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota
3.3 x 1.6 x 1.5 cm
Winning Bid: $75
Ferberite (excellent quality) (ex Kay Robertson Collection)
Boulder County, Colorado
3.2 x 2.7 x 1.1 cm
Winning Bid: $111
Pseudobrookite (rare) (ex Kay Robertson Collection)
Thomas Range, Juab County Utah
3.2 x 2.6 x 2.3 cm
Winning Bid: $15
Epidote with Albite and Augite* (*likely Diopside) (ex Kay Robertson Collection)
Seekar (Seebachkar), Seebach lake, Neukirchen am Grossvenediger, Zell am See District, Salzburg, Austria
5.2 x 4.7 x 3.2 cm
Winning Bid: $15
Hematite (superb thumbnail) (ex Kay Robertson Collection)
Mt Calvario, Biancavilla, Etna Volcanic Complex, Metropolitan City of Catania, Sicily, Italy
1.8 x 1.8 x 1.3 cm
Winning Bid: $64
Bournonite (doubly-terminated cogwheels) with Pyrite
Viboras Section, Machacamarca Mine, near Colavi, Potosi Department, Bolivia
5.5 x 4.2 x 1.3 cm
Winning Bid: $100
Orpiment (rich color) (ex David Burgess Collection)
Elbrusskiy Mine, 35 km NE of Elbruss Mountain , North Caucasus, Russia
4.7 x 3.2 x 1.6 cm
Winning Bid: $72
Rhodochrosite on Quartz
Sunnyside Mine, Bonita Peak, Gladstone, Eureka Mining District, San Juan County, Colorado
8.1 x 6.1 x 5.1 cm
Winning Bid: $133
Copper with Silver (ex Robert E. Jenkins Collection)
Cashin Mine, La Sal Mining District (Paradox Valley Mining District), Montrose Colorado, Colorado
5.3 x 3.1 x 3.0 cm
Winning Bid: $210
Opalescent Fluorite (unique material) (ex Kay Robertson Collection)
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
7.3 x 6.1 x 4.0 cm
Winning Bid: $70