PRE-DENVER SHOW FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday September 6th, 2018

Ends Thursday, September 6th, 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, Francesco Bedogne, 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. Gorgeous octahedral green FLUORITE from Riemvasmaak, South Africa
2. Wonderful emerald green DIOPTASE crystals from Kimbedi, Republic of Congo
3. Beautiful, richly colored, multi-color TOURMALINE crystal with Albite from Afghanistan
4. Rare MONOHYDROCALCITE specimen from the Sunnyside Mine, Colorado
5. WATER CLEAR, COLORLESS "ICE" FLUORITES on matrix from the Huanggang Fe-Sn deposit, China
6. A very gemmy 100+ gram AQUAMARINE crystal group from Brazil! (ex Rolando Gioia Collection)
7. A GEM quality, doubly-terminated QUARTZ crystal from Arkansas with very pronounced "r" faces (ex Francesco Bedogné Collection)
8. An incredibly aesthetic display specimen of ILMENITE on matrix from the TYPE LOCALITY in Russia!
9. Page 2 features assorted worldwide minerals (focusing on European localities) from the Kay Robertson Collection
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Bournonite (classic material) (ex Kay Robertson Collection)
Georg Mine, Willroth, Altenkirchen, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
3.6 x 2.7 x 1.6 cm
Arthurite (rare classic material) (ex Kay Robertson Collection)
Hingston Down Consols, Clitters United Mines, Gunnislake, Calstock, Cornwall, England, UK (Type Locality)
4.5 x 3.3 x 2.1 cm
Bournonite on Quartz (old classic) (ex Kay Robertson Collection)
Baia Sprie (Felsobanya), Baia Sprie, Maramures Co., Romania
6.3 x 4.7 x 2.1 cm
Ilmenite (fine crystal) on Nepheline (ex Kay Robertson Collection)
Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia (Type Locality for Ilmenite)
4.0 x 3.1 x 2.7 cm
Prehnite (ex Kay Robertson Collection)
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey
6.2 x 4.8 x 4.6 cm
Tremolite (classic locality specimen) (ex Kay Robertson Collection)
Campolungo, Piumogna Valley, Leventina, Ticino (Tessin), Switzerland (Type Locality)
6.3 x 4.6 x 3.7 cm
Monohydrocalcite (unusual locality specimen)
Main Level, Sunnyside Mine, Eureka District, San Juan County, Colorado
6.2 x 5.8 x 3.7 cm
Tourmaline (multi-color) (13.17 grams)
Paprok Mine, Kamdesh District, Nuristan Province, Afghanistan
2.5 x 1.8 x 1.6 cm
Turquoise (hard to find locale)
Kanatkazgan turquoise deposit, Altyn-Tyube area, Kirghiz Steppes, Karagandy Province, Kazakhstan
3.1 x 2.1 x 0.7 cm
Wavellite (old classic material)
Altmannsgrun, Plauen, Vogtland, Saxony, Germany
10.1 x 6.5 x 4.7 cm
Azurite and Malachite
Liufengshan Mine, Guichi District, Chizhou Prefecture, Anhui Province, China
7.7 x 6.2 x 5.3 cm
Native Bismuth with Nickelskutterudite (ex Kay Robertson Collection)
Schneeberg District, Erzgebirge, Saxony, Germany (Type Locality for BOTH species)
6.0 x 5.2 x 3.1 cm
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