PRE-TUCSON SHOW FINE MINERAL COLLECTION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday January 25th, 2018

Ends Thursday, January 25th, 2018
at 6:45 PM (Central Time Zone)



This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Rolando Gioia, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with dealers' inventories. Look here 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! Enjoy!


Some of the highlights from this week's auction include:

1. GEMMY blue INDICOLITE TOURMALINE from Brazil (ex Richard Kosnar Collection)
2. Classic deep red PROUSTITE on matrix from the Uchucchacua Mine, Peru
3. Large, rare, gemmy prismatic EPIDIDYMITE from Mt Malosa, Malawi
4. Attractive "flower"-shaped group of GEMMY GYPSUM crystals from Lignite Mine, Hesse, Germany
5. Rarities include HENRYMEYETERITE and MORENOSITE
6. Classic CALCITE on SIDERITE from Billy Creek, Ouray, Colorado (ex Dave Bergman Collection)
7. Brazilian minerals from the collection of Rolando Gioia!
8. PAGE 2 features assorted minerals from the Kay Robertson Collection!
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Cyanotrichite (ex Kay Robertson Collection)
Grandview Mine, Grand Canyon, Coconino County, Arizona
4.3 x 3.1 x 2.3 cm
Fluorite with Barite (classic) (ex Kay Robertson Collection)
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Wurttemberg, Germany
9.1 x 5.8 x 4.7 cm
Epidote (old specimen) (ex Kay Robertson Collection)
Bourg d'Oisans, Isore, Rhone-Alpes, France (Type Locality)
7.9 x 4.6 x 3.2 cm
Hematite (classic material) (ex Kay Robertson Collection)
Elba Island, Livorno Province, Tuscany, Italy
4.8 x 4.3 x 3.2 cm
Plancheite with Chrysocolla (ex Kay Robertson Collection)
Katanga, Democratic Republic of the Congo
4.2 x 2.8 x 2.8 cm
Tetrahedrite on Quartz (ex Kay Robertson Collection)
Bingham Canyon Mine, Bingham District, Oquirrh Mts, Salt Lake County, Utah
9.7 x 7.1 x 4.7 cm
Pyrite (iron cross twin) (ex Kay Robertson Collection)
Vlotho, Herford, Eastern Westphalia, North Rhine-Westphalia, Germany
5.3 x 5.3 x 1.2 cm
Fluorite (gem quality) (ex Kay Robertson Collection)
Dassu, Braldu Valley, Skardu District, Baltistan, Gilgit-Baltistan, Pakistan
2.4 x 2.2 x 2.2 cm
Babingtonite with Quartz "casts" after Anhydrite (ex Kay Robertson Collection)
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey
4.6 x 3.7 x 3.2 cm
Kinoite with Apophyllite and Gilalite (ex Kay Robertson Collection)
Christmas Mine, Christmas area, Banner District, Dripping Spring Mts, Gila County Arizona
7.0 x 4.6 x 4.3 cm
Apophyllite on Datolite and Ilvaite (ex Kay Robertson Collection)
Dal'negorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region, Russia
4.3 x 3.6 x 2.1 cm
Chrome Diopside (ex Kay Robertson Collection)
Outokumpu, Eastern Finland Region, Finland
4.4 x 1.2 x 0.7 cm
Cerussite on Descloizite (rare material) (ex Kay Robertson Collection)
Berg Aukus Mine, Grootfontein District, Otjozondjupa Region, Namibia
6.7 x 6.4 x 4.1 cm
Dolomite on Calcite (ex Kay Robertson Collection)
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine), Ozark-Mahoning group, Cave-in-Rock, Cave-in-Rock Sub-District, Hardin County, Illinois
4.3 x 3.6 x 2.7 cm
Quartz (GEM quality) (ex Kay Robertson Collection)
Hot Springs, Garland County, Arkansas
5.5 x 4.7 x 2.8 cm
Malachite pseudomorph after Azurite with Cerussite (ex Kay Robertson Collection)
Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal County, Arizona
6.6 x 4.9 x 3.9 cm
Datolite on Quartz (ex Kay Robertson Collection)
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey
7.7 x 5.6 x 3.4 cm
Psilomelane (botryoidal) (ex Kay Robertson Collection)
Annaberg District, Erzgebirge, Saxony, Germany
7.2 x 4.3 x 4.3 cm
Turquoise (var: Rashleighite) (ex Kay Robertson Collection)
St Austell District, Cornwall, England, UK
5.6 x 3.6 x 2.3 cm
Aegirine (twin) (ex Kay Robertson Collection)
Mount Malosa, Zomba District, Malawi
6.6 x 1.1 x 0.8 cm
Fluorapatite (ex Kay Robertson Collection)
Panasqueira, Covilha, Castelo Branco District, Portugal
6.7 x 5.6 x 2.8 cm
Natrolite (ex Kay Robertson Collection)
Phonolite Quarry, Hammerunterwiesenthal, Oberwiesenthal, Niederschlag-Baerenstein District, Erzgebirge, Saxony, Germany
8.3 x 7.1 x 4.5 cm
Pyrope (var: Rhodolite) (ex Kay Robertson Collection)
Masons Branch, Macon County, North Carolina
5.1 x 4.9 x 2.1 cm
Wardite on Tourmaline (rare association) (ex Kay Robertson Collection)
Pirineus claim, Monte Belo, Itinga, Minas Gerais, Brazil
2.3 x 2.1 x 1.0 cm
Quartz in Septarian Nodule (historic material)
near Remuzat, Drome, Auvergne-Rhone-Alpes, France
6.2 x 4.3 x 4.1 cm
Chalcopyrite coating Sphalerite (ex Kay Robertson Collection)
Friedrich-Wilhelm Mine, Herdorf, Siegerland, Rhineland-Palatinate, Germany
6.3 x 4.7 x 2.7 cm
Axinite-(Fe) (rare classic material) (ex Kay Robertson Collection)
Toroku Mine, Takachiho, Miyazaki Prefecture, Kyushu Region, Japan
7.7 x 6.7 x 3.2 cm
Amazonite (ex Dave Bergman Collection)
R. A. Kosnar claim on Yucca Hill, Steven's Ranch, near Lake George, Park County, Colorado
8.3 x 5.2 x 4.9 cm
Andradite Garnet (Geode / "Coconut") (new find)
Pampa Blanca District, Castrovirreyna Province, Huancavelica Department, Peru
5.0 x 3.7 x 2.3 cm
Mineral Auctions