SPECIAL PRE-DENVER SHOW FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end Thursday, Sept. 14, 2017 (set 1 of 2)

Ends Thursday, Sept. 14, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories, s you cannot easily find in today's market.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week's include:
1. TOURMALINES
2. Rarities & classic from the Kay Robertson and Paul Zerfass Collections
3. Large & rare MOLYBDENITE in QUARTZ
4. Fine large French SMOKY QUARTZ
5. Superb old Bisbee MALACHITE pseudomorph
6. Rare Tsumeb AZURITE & QUARTZ TN
7. Large FLUORITE from a NEW Chinese find
8. Superb old $2000 Cornwall CHALCOCITE and Cavradi HEMATITE
9. Large rare FAIRFIELDITE xl
Filter By

Large polished Malachite "eyes" slice
Kolwezi, Katanga, Democratic Republic of Congo
21.8 x 12.0 x 0.7 cm
Calcite (famous find) Cynthia Payne Coll.
Malmberget, Gallivare, Lappland, Sweden
6.9 x 3.3 x 2.9 cm
Safflorite & Native Silver (classic locale) Kay Robertson Coll.
Castle-Trethewey Mine, Cobalt-Gowganda region, Ontario, Canada
5.7 x 2.6 x 2.3 cm
Purple Quartz var. Chalcedony floater (Paul Otto Coll.)
Mamuju area, Sulawesi Barat Province, Sulawesi, Indonesia
8.9 x 5.0 x 3.0 cm
Cornetite (Type Locality) w/ Malachite
Star of the Congo Mine, Lubumbashi, Katanga, Democratic Republic of Congo
13.7 x 5.2 x 3.4 cm
Large Apophyllite xls (uncommon USA locale) Kay Robertson Coll.
Roadcuts, Kalama area, Cowlitz Co., Washington
5.2 x 4.5 x 3.8 cm
Rose Quartz
Alto da Pitorra, Laranjeiras, Galileia, Minas Gerais, Brazil
4.4 x 3.2 x 2.5 cm
Bornite on Pyrite
Milpillas Mine, Cuitaca, Sonora, Mexico
16.9 x 11.0 x 6.3 cm
Large Fluorite (2 generations - rare 2016 find)
nr. Yiwu City, Yiwu Co., Zhejiang Province, China
24.6 x 18.4 x 10.0 cm
Wavellite (rich color)
Mauldin Mountain Quarries, Montgomery Co., Arkansas
4.7 x 2.7 x 2.3 cm
Cuprian Gypsum (Dr. B. Philips Coll.)
Mount Gunson Copper mines, Pernatty Lagoon, Stuart Shelf, South Australia, Australia
18.3 x 12.5 x 9.8 cm
Rhodochrosite on Manganite (rare old locale)
Moanda Mine, Haut-Ogooue Province, Gabon
7.4 x 6.0 x 5.5 cm
Large color-zoned Fluorite (Zerfass Coll.)
Cave-in-Rock Sub-District, Hardin Co., Illinois
21.3 x 13.8 x 10.8 cm
Hematite (superb - classic locale) Dr. Francesco Bedogne Coll.
Cavradi gorge, Tujetsch, Grischun, Switzerland
7.7 x 6.0 x 5.2 cm
Prehnite (RARE locale) Kay Robertson Coll.
Coonabarabran, Gowen Co., New South Wales, Australia
4.6 x 2.8 x 2.5 cm
Bi-colored Tourmaline on Quartz (RARE rich combo)
Sapo mine, Conselheiro Pena, Minas Gerais, Brazil
11.3 x 10.7 x 5.3 cm
Gemmy DT bi-colored Tourmaline
Paprok, Kamdesh District, Nuristan Province, Afghanistan
7.1 x 2.1 x 2.0 cm
Gemmy bi-colored Fluorite (fluorescent) w/ Dolomite (Zerfass Coll.)
Shangbao Mine, Leiyang Co., Hunan Province, China
14.3 x 9.3 x 6.0 cm
Mineral Auctions