SPECIAL AUCTION – MINERAL CLASSICS from the KAY ROBERTSON MINERAL COLLECTION - ends Saturday July 25th, 2020

SPECIAL AUCTION – KAY ROBERTSON MINERAL COLLECTION - ends Saturday July 25nd, 2020

This auction features specimens culled from the lifelong collection of Kay Robertson, who taught me so much when I was allowed to spend time learning from her collection in the 1990s, acquired over a period of 80-plus years of collecting!  In April 2017 we packed up her collection to share these treasures with a new era of collectors while Rob had a chance to visit with her and hear stories of some of her pieces. Read some of Rob's favorite experiences with her in our blog: https://www.irocks.com/kay-rob...

HIGHLIGHTS INCLUDE:

1) old USA classics! 

2) old Europe Classics!

3) rare pseudomorphs, rare species…and a little bit of everything!

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Native Antimony in Calcite
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany
6.3 x 5.9 x 1.3 cm
Winning Bid: $107
Talc ps. after Quartz (old classic pseudomorph!)
Johannes Mine, Gopfersgrun, Fichtelgebirge, Bavaria, Germany
5.1 x 4.3 x 2.8 cm
Winning Bid: $232
Beryl var. Morganite in Albite and Quartz ex Dawson
White Queen Mine, Hiriart Mountain, Pala District, San Diego Co., California, USA
9.5 x 8.7 x 6.6 cm
Winning Bid: $315
Fluorite (fluorescent) - illustrated
Cacilia Mine, Freiung, Wolsendorf Fluorite Mining District, Bavaria, Germany
14.4 x 10.0 x 3.5 cm
Winning Bid: $430
Baryte on Fluorite - illustrated
Cacilia Mine, Freiung, Wolsendorf Fluorite Mining District, Bavaria, Germany
11.8 x 7.6 x 7.3 cm
Winning Bid: $165
Large, Pseudocubic Vesuvianite crystal
Sierra de Cruces, Mun. de Sierra Mojada, Coahuila, Mexico
6.3 x 5.3 x 5.2 cm
Winning Bid: $232
Calcite on Amethyst
Valenciana Mine, Mun. de Guanajuato, Guanajuato, Mexico
5.6 x 3.7 x 2.6 cm
Winning Bid: $455
Tourmaline (rare from Canada!)
Leduc Mine, Val-des-Monts, Outaouais, Quebec, Canada
11.3 x 2.7 x 2.4 cm
Winning Bid: $322
Native Copper
Pyramid District, Washoe Co., Nevada, USA
7.9 x 5.9 x 2.8 cm
Winning Bid: $157
Calcite (fluorescent and twinned) ex Carl Bosch
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany
7.2 x 4.9 x 4.5 cm
Winning Bid: $328
Chalcodite (Stilpnomelane) - old USA classic
Sterling Mine, Antwerp, Jefferson Co., New York, USA
8.0 x 4.7 x 4.2 cm
Winning Bid: $51
Chlorapatite
Snarum, Modum, Buskerud, Norway
5.0 x 2.9 x 2.5 cm
Winning Bid: $57
Faden Quartz
Stand on Your Head 2 Mine, Saline Co., Arkansas, USA
8.3 x 5.2 x 3.4 cm
Winning Bid: $99
Epidote ps. Andradite Garnet (unusual!) ex Scott Williams
Garnet Hill Mine, Garnet Hill, Calaveras Co., California, USA
7.4 x 5.2 x 3.4 cm
Winning Bid: $183
Galena ps. Pyromorphite, with Pyrite (dated 1866 !)
Kautenbach Mine, Traben-Trarbach, Hunsruck, Rhineland-Palatinate, Germany
5.8 x 5.7 x 3.7 cm
Winning Bid: $2,350
Epidote (rare USA locality for fine xls!)
Tulare County, California, USA
8.1 x 2.8 x 1.1 cm
Winning Bid: $145
Milarite - superb, rare XL
Jaguaracu pegmatite, Jaguaracu, Minas Gerais, Brazil
2.4 x 2.0 x 1.0 cm
Winning Bid: $267
Babingtonite and Calcite (old USA classic!)
Lane & Son traprock quarries, Westfield, Hampden Co., Massachusetts, USA
5.5 x 4.8 x 3.7 cm
Winning Bid: $33
Hemimorphite
Kipushi Mine, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
6.8 x 5.2 x 4.2 cm
Winning Bid: $42
Wolframite (old classic locale!)
Altenberg, Erzgebirge, Saxony, Germany
6.0 x 4.4 x 2.7 cm
Winning Bid: $277
Cerussite (old USA classic!)
Flux Mine, Patagonia Mts, Santa Cruz Co., Arizona, USA
10.4 x 9.0 x 5.8 cm
Winning Bid: $331
Rhodochrosite with Quartz and Fluorite
Sunnyside Mine group, Bonita Peak, Eureka District, San Juan Co., Colorado, USA
6.6 x 5.8 x 4.3 cm
Winning Bid: $297
Crocoite
Red Lead Mine, Dundas mineral field, Zeehan district, Tasmania, Australia
4.9 x 1.3 x 1.0 cm
Winning Bid: $102
Descloizite stalactites
Velardena Mine, West Camp, Santa Eulalia District, Chihuahua, Mexico
9.3 x 5.7 x 3.9 cm
Winning Bid: $306
Calcite stalactites
Carter Co., Montana, USA
6.7 x 5.2 x 5.2 cm
Winning Bid: $476
Jeanbandyite and Chalcocite on Fluorite (rare!)
Mount Pleasant Mine, Saint George Parish, Charlotte Co., New Brunswick, Canada
6.1 x 4.6 x 2.9 cm
Winning Bid: $411
Tourmaline var. Dravite (late 1800s) ex Caswell
Power's Farm, Pierrepont, St. Lawrence Co., New York, USA
6.3 x 4.3 x 3.2 cm
Winning Bid: $433
Copper ex Anton Berger coll.
Turinskii Mine, Krasnoturinsk, Middle Urals, Urals Region, Russia
4.3 x 1.9 x 0.9 cm
Winning Bid: $526
Wavellite (rare California classic!)
Slate Mountain Mine, El Dorado Co., California, USA
5.8 x 4.2 x 2.5 cm
Winning Bid: $535