TUCSON SHOW FINE MINERAL LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday February 21st, 2019

Ends Thursday, February 21st, 2019
at 6:45 PM (Central Time Zone)


It's the final week of the Tucson Show, and 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 recent shows / discoveries 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 the newly acquired collection of David Burgess along with Brian Lloyd, Rolando Gioia, Charlie Key, Dr. Stephen Smale, Geary Murdock 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. Classic emerald green DIOPTASE from Tsumeb
2. Beautifully crystallized GOLD specimen from the Piolho claim in Brazil
3. Rare "Star of David" twinned SPINEL crystal from Myanmar
4. Fine cabinet sized BORNITE with QUARTZ and PYRITE from Butte, Montana
5. Attractive doubly-terminated "floater" group of TOURMALINE from Brazil (ex Rolando Gioia Collection)
6. Old classic LANGITE specimen from Slovakia
7. Cool GEMMY green TALC from Vermont
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection
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Laumontite (fine rare twins) (ex Kay Robertson Collection)
Pine Creek Mine, Bishop District, Inyo County, California
9.0 x 3.8 x 2.3 cm
Pharmacolite (probably Alumohydrocalcite) (ex Kay Robertson Collection)
Rueben Mine, Nowa Ruda (Neurode), Klodzko District, Lower Silesia (Dolnoslaskie), Poland
5.5 x 4.8 x 3.7 cm
Copper (great old classic) (Mined 1894) (ex Kay Robertson Collection)
Kausersteimel Mine, Kausen, Betzdorf-Gebhardshain, Altenkirchen, Rhineland-Palatinate, Germany
5.7 x 5.3 x 4.2 cm
Prehnite (fantastic quality)
Lower New Street, Paterson, Passaic County, New Jersey
5.2 x 4.7 x 1.3 cm
Bornite (classic material)
Leonard Mine, Butte, Butte District, Silver Bow County, Montana
11.3 x 4.1 x 3.6 cm
Hauyne (rare old locality specimen) (ex Kay Robertson Collection)
Cava di Campagnano, Campagnano di Roma, Sacrofano Caldera, Rome Province, Latium, Italy
5.2 x 4.1 x 3.7 cm
Langite (old classic material)
Piesky, Spania Dolina (Herrengrund), Banska Bystrica Co., Banska Bystrica Region, Slovakia
10.0 x 4.4 x 3.2 cm
Dioptase (classic material)
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
3.4 x 2.3 x 0.8 cm
Gold (beautifully crystallized)
Piolho claim, Pacaraima, Roraima, Brazil
0.8 x 0.4 x 0.2 cm
Proustite (classic material!) (ex Kay Robertson Collection)
Christian-Stollen Mine, Himmelfahrt, Freiberg District, Erzgebirge, Saxony, Germany
2.8 x 1.9 x 1.1 cm
Mimetite (superb quality) (ex Kay Robertson Collection)
13th Level, Potosi Mine, Aquiles Serdan, West Camp, Santa Eulalia District, Chihuahua, Mexico
3.5 x 1.8 x 1.6 cm
Ruby Spinel ("Star of David" Twin)
Mogok, Sagaing District, Mandalay Division, Mandalay (Burma)
0.5 x 0.4 x 0.3 cm
Purple Quartz (var: Chalcedony / Agate) ("Grape" Chalcedony / Agate)
Mamuju area, Sulawesi Barat Province, Sulawesi, Indonesia
7.6 x 6.2 x 4.3 cm
Copper ("leaf") (unique locality specimen)
Corocoro District, Pacajes Province, La Paz Department, Bolivia
11.3 x 9.2 x 1.4 cm
Mineral Auctions