FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday May 31st, 2018

Ends Thursday, May 31st, 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. EXCELLENT $$ matrix specimen of gemmy blue-green TOURMALINE on QUARTZ from Afghanistan
2. Classic "snowflake" CERUSSITE on SMITHSONITE from Tsumeb
3. GEM quality colorless TOPAZ crystal from China
4. Newly discovered orange CALCITE from the Grabiszyce Quarry, Poland
5. Fine quality beautiful blue rare CORNETITE specimen with Malachite and Chrysocolla from D. R. Congo
6. Newly discovered green twinned CHRYSOBERYL from Brazil
7. Large "floater" piece of gemmy yellow LIBYAN DESERT GLASS
8. Polished specimen of NATIVE SILVER with RHODOCHROSITE from Peru
9. Page 2 features assorted minerals from the Kay Robertson collection
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Mimetite (classic material)
Ojuela Mine, Mapimi, Durango, Mexico
3.7 x 2.9 x 2.3 cm
Cerussite ("snowflake") on Smithsonite (ex John Arnaud Collection)
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
4.3 x 3.8 x 3.3 cm
Copper
Central Mine, Keweenaw County, Michigan
7.1 x 4.8 x 3.7 cm
Dioptase
Christoph Mine, Kaokoveld Plateau, Kunene Region, Namibia
3.7 x 1.7 x 1.0 cm
Topaz (GEM crystal) (57.29 grams)
Nujiang Valley, Nujiang Autonomous Prefecture, Yunnan Province, China
4.5 x 3.2 x 2.3 cm
Barite on Quartz (ex Paul Zerfass Collection)
Maine Mine, Cordesse, Lucenay-l'Eveque, Saone-et-Loire, Bourgogne-Franche-Comte, France
12.3 x 10.8 x 7.2 cm
Fluorite with Calcite (ex Paul Zerfass Collection)
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
5.3 x 3.7 x 2.6 cm
Chrysoberyl twins (new find!)
Espirito Santo, Brazil
2.1 x 2.1 x 1.6 cm
Fluorapatite on Albite
Sao Geraldo do Baixio, Minas Gerais, Brazil
3.1 x 2.3 x 2.1 cm
Calcite (new find!)
Grabiszyce Quarry, Lesna, Luban District, Lower Silesia, Poland
4.3 x 2.6 x 1.7 cm
Pyrite
Navajun, La Rioja, Spain
6.1 x 5.3 x 3.8 cm
Cornetite
Star of the Congo Mine, Lubumbashi, Katanga (Shaba), Democratic Republic of Congo (Zaire)
8.1 x 6.3 x 5.3 cm
Opal (var: Opal-(AN)) ("Hyalite Opal")
Squaretop Mountain, Kaimkillenbun, Dalby, Western Downs Region, Queensland, Australia
6.1 x 4.6 x 2.3 cm
Orpiment (classic material)
El'brusskiy Arsenic mine, Elbrus Mt, Kabardino-Balkarian Republic, Northern Caucasus Region, Russia
3.7 x 3.3 x 2.1 cm
Scorzalite (rare phosphate)
Estano Orcko mine, Machacamarca District (Colavi District), Saavedra Province, Potosu Department, Bolivia
8.8 x 6.6 x 1.4 cm
Prehnite with Epidote
Bendoukou, Sandare District, Kayes Region, Mali
3.3 x 2.8 x 2.7 cm
Corundum (var: Ruby) (4.35 carats)
Winza, Mpapwa, Mpapwa District, Dodoma Region, Tanzania
0.7 x 0.6 x 0.6 cm
Sphalerite with Calcite (rare locality specimen) (ex Kay Robertson Collection)
Schauinsland Pb-Zn mining district, Black Forest, Baden-Wurttemberg, Germany
5.6 x 4.6 x 0.8 cm
Pyroxene with Tridymite (rare material and locality) (ex Kay Robertson Collection)
Ettringer Feld, Southern lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
5.7 x 2.7 x 2.3 cm
Calcite with Natrolite (ex Kay Robertson Collection)
Phonolite Quarry (Richter Quarry), Hammerunterwiesenthal, Oberwiesenthal, Niederschlag-Baerenstein District, Erzgebirge, Saxony, Germany
8.8 x 3.2 x 3.1 cm
Freibergite (very rare locality specimen) (ex Kay Robertson Collection)
Panamint District (Ballarat District), Panamint Mts (Panamint Range), Death Valley, Inyo County, California
4.0 x 2.7 x 2.7 cm
Pseudomalachite (fine micro crystals) (ex Kay Robertson Collection)
Obererl (Ehl), Linz am Rhein, Westerwald, Rhineland-Palatinate, Germany
7.7 x 5.1 x 4.0 cm
Tarbuttite (rare, classic material) (ex Kay Robertson Collection)
Kabwe Mine (Broken Hill Mine), Kabwe (Broken Hill), Kabwe District, Central Province, Zambia (Type Locality)
6.2 x 5.2 x 3.3 cm
Ilvaite (classic material) (ex Kay Robertson Collection)
Serifos Island, Cyclade Islands, Kyklades Prefecture, Aegean Islands Department, Greece
3.3 x 2.2 x 1.2 cm
Scheelite / Stolzite on Zinnwaldite (ex Kay Robertson Collection)
Cinovec / Zinnwald, Erzgebirge; Krusne Hory Mts (Ore Mts), Germany & Czech Republic
6.2 x 6.0 x 2.2 cm
Dolomite (twins) (ex Rolando Gioia Collection)
Pomba pit, Serra das Eguas, Brumado, Bahia, Brazil
3.3 x 2.6 x 2.3 cm
Mineral Auctions