POST-DENVER MINERAL COLLECTION AUCTIONS (set 1 of 2) featuring OLD CLASSICS, GEM CRYSTALS and RARE SPECIES - ends Thursday Oct 11, 2018

ends Thursday Oct 11, 2018
at 6:30 PM (Central Time Zone)

A selection of specimens in this week's auctions with a mix of classics, gem crystals, contemporary minerals 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 collections of Paul Zerfass, 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 RHODOCHROSITE from the late 1970s finds at the N'Chwaning I Mine
2. Rare old classics from Neudorf
3. Gem AQUAMARINE from a NEW FIND in the Erongos
4. Huge rare old New York SCAPOLITE and classic Eden Mills GROSSULAR & DIOPSIDE
5. Large colorful SMITHSONITE from Mexico
6. Rare large VIVIANITE from Kerch
7. Selection of RHODOCHROSITES
8. Superb rare Arkansas SMOKTY QUARTZ
Filter By

Rhodochrosite (superb - classic late 1970s finds)
N'Chwaning I Mine, Kalahari manganese field, South Africa
5.5 x 3.7 x 3.2 cm
Schorl on Cleavelandite & Quartz (Ted Bartels Coll.)
Golconda district, Governador Valadares, Minas Gerais, Brazil
12.5 x 10.0 x 8.3 cm
Bipyramidal Wulfenite (rare Mexico) Kay Robertson Coll.
San Carlos Mine (Apex mine), Chihuahua, Mexico
3.5 x 3.4 x 2.7 cm
Quartz ps. After Calcite (RARE Colorado!) Kay Robertson Coll.
Morning Star mine, Ouray District, Ouray Co., Colorado
5.5 x 4.0 x 3.4 cm
Siderite w/ Calcite (old classic) Kay Robertson Coll.
Neudorf, Harzgerode mining district, Harz, Saxony-Anhalt, Germany
10.2 x 8.5 x 3.4 cm
Rhodochrosite (W.S. Logan Coll.)
Uchucchacua Mine, Oyon Province, Lima Department, Peru
6.4 x 4.5 x 2.7 cm
DT Kunzite (New Find)
Mawi pegmatite, Nuristan Province, Afghanistan
11.5 x 3.5 x 1.8 cm
Hematite "iron rose" (Dr. B. Phillips Coll.)
Ouro Preto, Minas Gerais, Brazil
6.0 x 4.7 x 3.1 cm
Unusual Ilvaite w/ Quartz cast after Fluorite (Ken Roberts Coll.)
Huanggang Fe-Sn deposit, Hexigten Banner, Inner Mongolia A.R., China
4.9 x 4.1 x 3.5 cm
Rhodochrosite & Quartz (W.S. Logan Coll.)
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
7.4 x 6.6 x 4.2 cm
Gem Aquamarine xls (NEW FIND)
Erongo Mts, Erongo Region, Namibia
5.2 x 4.5 x 3.2 cm
Fluorite octahedrons (fluorescent) Kay Robertson Coll.
Judith Lynn Claim, Pine Canyon deposit, Grant Co., New Mexico
8.7 x 4.5 x 3.6 cm
Bournonite, Siderite, etc (old classic) Falkenhorst & Robertson Coll.
Neudorf, Harzgerode mining district, Harz, Saxony-Anhalt, Germany
7.3 x 5.5 x 5.3 cm
Huge Scapolite var. Wernerite xl (RARE, OLD New York)
Pyrites, Canton Township, St. Lawrence Co., New York
10.5 x 9.5 x 8.5 cm
Large bi-colored Smithsonite (Ted Bartels Coll.)
El Refugio Mine, Choix, Sinaloa, Mexico
16.1 x 10.2 x 6.0 cm
Silver on Copper xls (uncommon)
White Pine Mine, Ontonagon Co., Michigan
10.5 x 4.4 x 1.5 cm
Rhodochrosite on Quartz (rare locale) W.S. Logan Coll.
Djurkovo Complex, Laki, Rhodope Mts, Plovdiv Oblast, Bulgaria
8.0 x 7.0 x 3.5 cm
Quartz "icicle" earrings
Unknown
5.0 x 0.8 x 0.6 cm (Largest of 2)
Galena "T" (old classic) Kay Robertson Coll.
Tri-State District, Kansas, Missouri and Oklahoma
6.1 x 5.7 x 3.6 cm
Gem Calcite twin
Jalgaon, Maharashtra, India
3.5 x 3.0 x 2.8 cm
Muscovite (Terry Ledford personal Coll.)
Rist Mine, Hiddenite, Alexander Co., North Carolina
5.6 x 5.0 x 3.5 cm
Helvine (old - early 2000s)
Wushan Spessartine Mine, Tongbei, Fujian Province, China
4.1 x 2.9 x 1.9 cm
Vanadinite
Mibladen, Midelt Province, Draa-Tafilalet Region, Morocco
3.9 x 2.8 x 2.3 cm
Chrysocolla (RARE - 2016 find)
Huancabamba Province, Piura Department, Peru
8.5 x 8.0 x 6.3 cm
Aragonite spikes (rare old classic)
Frizington, Cumbria, England
9.5 x 4.8 x 3.4 cm
Pink Stilbite (rare old Washington) Groben & Lobell Coll.
East Fork Lewis River, Skamania Co., Washington
9.3 x 8.2 x 6.7 cm
Unusual etched Fluorite (Kay Robertson Coll.)
Santa Rosa mine, Itambacuri, Minas Gerais, Brazil
5.1 x 1.9 x 1.3 cm
Chalcedony ps. After fossil sponge (2016 find)
Bu Craa, Laayoune Province, Laayoune-Sakia El Hamra Region, Morocco
5.5 x 3.1 x 3.0 cm
Mineral Auctions