FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday October 18th, 2018

Ends Thursday, October 18th, 2018
at 6:45 PM (Central Time Zone)


We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from Tucson along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including Willard Wulff, Paul Zerfass, Rolando Gioia, Charlie Key and plenty of pieces from Kay Robertson along with various 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. Large GEMMY multi-colored "phantom" FLUORITE group from the Minerva #1 Mine, Illinois
2. A newly mined piece of the now famous "GRAPE AGATE" / "GRAPE CHALCEDONY" from Indonesia
3. Lovely stark blue KYANITE crystals among mint green FUCHSITE from Russia
4. Attractive silvery metallic BOURNONITE "cogwheels" on matrix from Bolivia
5. Tsumeb staples like AZURITE, SMITHSONITE and CALCITE
6. Classic specimen of AZURITE with MALACHITE plus reticulated CERUSSITE from Tiger, Arizona
7. Beautiful skeletal GOLD crystals on QUARTZ from Grass Valley, California
8. Page 2 features assorted worldwide minerals (focusing on European localities) from the Kay Robertson Collection
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Purple Quartz (var: Chalcedony / Agate) ("Grape" Chalcedony / Agate)
Mamuju area, Sulawesi Barat Province, Sulawesi, Indonesia
9.3 x 8.7 x 3.8 cm
Gold on Quartz
Grass Valley, Nevada County, California
0.7 x 0.6 x 0.2 cm
Bournonite ("cogwheels")
Viboras Section, Machacamarca Mine, near Colavi, Potosi Department, Bolivia
9.3 x 6.8 x 4.0 cm
Pink Opal (new find)
Pisco Province, Ica Department, Peru
4.3 x 3.4 x 2.1 cm
Grossular Garnet (ex Charlie Key Collection)
Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Quebec, Canada
4.3 x 2.7 x 1.8 cm
Fluorite (multi-color "phantom" crystals) with Sphalerite
Rosiclare Level, Minerva Mine #1, Ozark-Mahoning Group, Hardin County, Illinois
10.3 x 6.2 x 5.3 cm
Schorl on "Cleavelandite" with "Star" Muscovite
Shigar Valley, Skardu District, Baltistan, Gilgit-Baltistan, Pakistan
12.3 x 9.2 x 7.6 cm
Shattuckite (ex Charlie Key Collection)
Kaokoveld Plateau, Kunene Region, Namibia
2.7 x 2.5 x 1.5 cm
Natrolite (ex Charlie Key Collection)
Poudrette Quarry, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada
1.6 x 1.0 x 0.5 cm
Opal (highly colorful)
Tsehay Mewcha, Wegeltena, Delanta, Wello (Wollo), Afar Province, Ethiopia
1.2 x 0.8 x 0.7 cm
Quartz with Hematite (var: "Specularite") (ex John Arnaud Collection)
Florence Mine, Egremont, Cumberland, Cumbria, England, UK
5.7 x 5.5 x 2.3 cm
Fluorite (new find)
Koh-i-Maran, Kalat District, Balochistan (Baluchistan), Pakistan
4.2 x 3.5 x 2.3 cm
Vivianite
Tomokoni adit, near Canutillos, Colavi, Saavedra Province, Potosi Department, 36 km NE of Potosi, Bolivia
6.2 x 3.0 x 2.2 cm
Tourmaline (multi-crystal set)
Minas Gerais, Brazil
1.1 x 0.5 x 0.4 cm to 0.6 x 0.4 x 0.3 cm
Brucite (beautiful color)
Killa Saifullah District, Balochistan, Pakistan
8.5 x 5.2 x 1.2 cm
Fluorite with Arsenopyrite (new find)
Huanggang Fe-Sn deposit, Hexigten Banner, Ulanhad League, Inner Mongolia Autonomous Region, China
4.3 x 3.4 x 3.4 cm
Orpiment (great color)
El'brusskiy Arsenic mine, Elbrus Mt, Kabardino-Balkarian Republic, Northern Caucasus Region, Russia
3.7 x 2.5 x 2.2 cm
Fluorapatite (hollow)
Sapo Mine, Ferruginha, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil
3.7 x 1.6 x 1.5 cm
Rosasite and Malachite included in Calcite (classic material)
Ojuela Mine, Mapimi, Mun. de Mapimi, Durango, Mexico
11.8 x 9.0 x 5.3 cm
Fluorite (GEM twin) (ex Dr. Stephen Smale Collection)
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
2.2 x 1.9 x 1.8 cm
Gypsum ("Desert Rose")
near Oued Souf, ("City of a Thousand Domes"), El Oued Province, Algeria
7.7 x 5.7 x 3.3 cm
Prehnite (classic material)
Upper New Street Quarry, Paterson, Passaic County, New Jersey
8.4 x 3.4 x 2.4 cm
Olmiite (ex Charlie Key Collection)
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
2.7 x 1.6 x 1.4 cm
Grossular (var: "Hessonite") (classic material) (ex Kay Robertson Collection)
Comba Robert, Avigliana, Val di Susa, Torino, Piemonte, Italy
6.8 x 4.5 x 3.4 cm
Natrolite (ex Kay Robertson Collection)
Phonolite Quarry, Hammerunterwiesenthal, Oberwiesenthal, Niederschlag-Barenstein District, Erzgebirge, Saxony, Germany
7.8 x 6.2 x 4.2 cm
Wulfenite (ex Kay Robertson Collection)
Ahumada Mine, Los Lamentos Mts, Chihuahua, Mexico
7.2 x 5.7 x 2.3 cm
Fluorite (ex Kay Robertson Collection)
Xianghualing Mine, Xianghualing Sn-polymetallic ore field, Linwu Co., Chenzhou Prefecture, Hunan Province, China
6.3 x 3.8 x 3.7 cm
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