SPECIAL AUCTION: RARE SPECIES & CLASSIC OLD MINERALS
from the Kay Robertson Mineral Collection
ends TUESDAY January 8th, 2019

NOTE SPECIAL END DAY: TUESDAY January 8th, 2019
at 630 PM (Central Time Zone)!


The Kay Robertson collection has thus far afforded a great deal of intellectual and mineral pleasure to us here at The Arkenstone, as well as collectors around the globe. Many specimens are of historical and mineralogical interest, so working with them has been a truly gratifying experience.
With 5 updates and several previous auctions already done, we thought it would be a fun change of pace to produce a totally dedicated "Kay auction," and let things go where they may. Please note that a number of these specimens were purchased by Kay 50-60 years ago, at prices that ranged from several dollars to several hundreds of dollars at the time. If these were the prices a half-century ago, just imagine what the possible values are now. There might be some real bargains to be had! Text and photos by collector, Jeff Starr.
For those unfamiliar with the Kay Robertson Collection, Kay is a prominent California collector who specialized in European classics (see our blog at www. https://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world ; and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017). Happy hunting!
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Andradite
Tang-e Ashin, Kangavar, Kermanshah Province, Iran
4.9 x 4.2 x 2.2 cm
Creedite (old 1960's find)
Santa Eulalia District, Chihuahua, Mexico
4.0 x 3.9 x 3.1 cm
Calcite on Quartz and Siderite
Tae Hwa Mine, Angseong-myeon, Chungju, Chungcheongbukdo, South Korea
7.3 x 5.8 x 5.0 cm
Galena (twinned)
Siegen, Siegerland, North Rhine-Westphalia, Germany
6.8 x 5.2 x 3.4 cm
Quartz var. Citrine
Northern Urals, Russia
7.7 x 2.3 x 1.4 cm
Fluorite
Pforte, Pforte Mts, Arandis, Erongo Region, Namibia
8.2 x 4.5 x 4.0 cm
Cavansite and Stilbite
Pune District (Poonah District), Maharashtra, India
4.9 x 3.2 x 2.3 cm
Fluorite (fluorescent)
Odsbach, Oberkirch, Black Forest, Baden-Wurttemberg, Germany
13.4 x 10.0 x 6.0 cm
Uranophane and Calcite
near Grants, Cibola County, New Mexico, USA
4.4 x 4.0 x 3.0 cm
Stibnite on Quartz (old classic!)
Wolfsberg, Stolberg, Harz, Saxony-Anhalt, Germany
8.5 x 7.0 x 6.0 cm
Gypsum var. Selenite
Otto Brosowski Shaft, Mansfeld Basin, Saxony-Anhalt, Germany
11.4 x 3.5 x 1.2 cm
Vanadinite
Bou Almaden, Mibladen mining district, Draa-Tafilalet Region, Morocco
2.8 x 2.8 x 0.9 cm
Mineral Auctions