POST-DENVER MINERAL COLLECTION AUCTIONS (set 1 of 2) featuring OLD CLASSICS, GEM CRYSTALS and RARE SPECIES - ends Thursday Oct 4, 2018

ends Thursday Oct 4, 2018
at 6:30 PM (Central Time Zone)

A selection of specimens in this week's auctions with a mix of gem crystals, classics over 100 years old, contemporary beauties and rare species ! We are continuing to process material from the wonderful old mineral collections of Kay Robertson along with fine minerals from numerous other collections and purchases including 1980s-90s specimens from the Ted Bartels and Barratt Phillips Collections. Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week's include:

1. Superb large AQUAMARINE from a NEW FIND in the Erongos
2. Illustrated specimens from the Dr. Barratt Phillips Collection
3. Selection of RHODOCHROSITES
4. Rare large OKLAHOMA MALACHITE
5. Excellent gemmy DT bi-colored TOURMALINE from the Himalaya Mine
6. Striking and unusual large Uruguay AMETHYST & CALCITE cast from the Ken Roberts Collection
7. Old, rare HEDENBERGITE from the Type Locality in Sweden
8. Rare SCORODITE from Brazil and unusual old GALENA and CERUSSITE from Broken Hill
Filter By

Gemmy DT bi-colored Tourmaline (81 grams)
Himalaya Mine, San Diego Co., California
6.8 x 2.7 x 2.7 cm
Quartz encl. Helvine (RARE combo) ex Obodda
Kara-Oba W deposit, Betpakdala Desert, Karaganda, Kazakhstan
5.8 x 5.5 x 3.3 cm
Sharp Hedenbergite xl (RARE, old - Type Locality)
Tunaberg, Nykoping, Sodermanland, Sweden
3.2 x 2.1 x 1.7 cm
Galena cubes (classic locale) ex Hansen
Joplin Field, Tri-State District, Jasper Co., Missouri
6.1 x 5.8 x 4.1 cm
Scorodite (superb - RARE Brazil loc.!) Robertson Coll.
Iron deposit, Antonio Pereira district, Ouro Preto, Minas Gerais, Brazil
6.0 x 5.0 x 2.9 cm
Gemmy Danburite xls (Robertson Coll.)
Charcas, San Luis Potosi, Mexico
5.7 x 2.2 x 1.5 cm
Gemmy bi-colored Fluorite (NEW find)
Quanzhou City, Fujian Province, China
17.5 x 7.8 x 6.3 cm
Pink Chalcedony petrified wood limb cast (RARE )
Texas Spring Canyon, Contact District, Elko Co., Nevada
10.5 x 4.0 x 2.7 cm
Pyrite w/ Limonite coating (Texas!) Dr. B. Phillips Coll.
Martin Marietta quarry (TXI Cement quarry), Midlothian, Ellis Co., Texas
7.7 x 4.2 x 3.6 cm
Smithsonite (Robertson Coll.)
Santa Eulalia, Chihuahua, Mexico
2.4 x 2.0 x 1.5 cm
Galena altering to Cerussite (old - RARE) Kay Robertson Coll.
Broken Hill Proprietary Mine, Broken Hill, New South Wales, Australia
5.0 x 4.3 x 3.3 cm
Bi-colored Fluorite (fluorescent) on dolostone (Kay Robertson Coll.)
North quarry, Dundas Quarry, Wentworth Co., Ontario, Canada
5.8 x 5.3 x 4.5 cm
Actinolite on Muscovite Schist (Kay Robertson Coll.) - Italy!
Primolo, Malenco Valley, Sondrio Province, Lombardy, Italy
17.0 x 14.0 x 4.5 cm
Gem purple Scapolite ex Robertson Coll.
Darra-i-Pech, Nangarhar Province, Afghanistan
1.8 x 0.6 x 0.6 cm
Gemmy Amethyst xs (classic locale)
Piedra Parada (Las Vigas), Veracruz, Mexico
6.8 x 6.0 x 2.8 cm
Chatoyant Primary Malachite - Joe Lobell Coll.
Kenge, M'Fouati District, Bouenza Dept., Republic of Congo (Brazzaville)
3.4 x 2.7 x 1.7 cm
Faden Quartz w/ curved xls Robertson Coll.
Piz Beverin, Mathon, Hinterrhein Valley, Grischun, Switzerland
8.2 x 4.1 x 3.4 cm
Marcasite xl nodules (Dr. B. Phillips Coll.)
Bilina coal mine, Bilina, Ustu Region, Czech Republic
7.2 x 3.0 x 2.5 cm
Vanadinite
Mibladen, Midelt Province, Draa-Tafilalet Region, Morocco
3.2 x 2.6 x 2.5 cm
Baryte & Sulfur (Dr. B. Phillips Coll.)
Machow mine, Tarnobrzeg, Podkarpackie, Poland
6.1 x 4.1 x 3.5 cm
Large Fluorite (fluorescent) & Quartz
Ruyuan fluorite mine, Shaoguan Prefecture, Guangdong Province, China
18.8 x 9.3 x 8.0 cm
Crystallized Copper (superb) ex Private Collection
Pewabic Lode, Houghton Co., Michigan
3.3 x 2.5 x 1.4 cm
Vesusivanite (Charlie Key Coll.)
Jeffrey Mine, Asbestos, Quebec, Canada
2.8 x 2.8 x 2.2 cm
Calcite incl. Hematite (RARE Mexico) Dixon & Wolfe Coll.
Promontorio Mine, Labor de Terrazas, Chihuahua, Mexico
11.0 x 7.0 x 4.8 cm
Pseudocubic Wulfenite, Calcite & Mimetite (2008 find)
San Juan Poniente, Mina Ojuela, Mapimi, Durango, Mexico
8.6 x 8.0 x 3.5 cm
Stilbite-Ca (illustrated) Dr. B. Phillips Coll.
Upper New Street Quarry, Paterson, Passaic Co., New Jersey
4.8 x 4.4 x 2.9 cm
Mineral Auctions