POST-DENVER FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday October 11th, 2018

Ends Thursday, October 11th, 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, Paul Zerfass, 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. Large GEMMY purple / lilac colored "phantom" FLUORITE group from Spain
2. Desirable "white cap" AMAZONITE crystals from Colorado (ex Dave Bergman Collection)
3. BIG impressive porcelain-esque CARLSBAD TWINNED MICROCLINE with SCHORL from Pakistan
4. Attractive doubly-terminated "floater" GEMMY SMOKY QUARTZ specimen from the California Blue Mine, San Bernardino County, California.
5. Classic reticulated twinned CERUSSITE on matrix from Tsumeb
6. An interesting pink CHALCHEDONY specimen from the childhood home of Supreme Court Justice Sandra Day O'Connor.
7. Rarities include FERRONIGERITE-2N1S, TUGTUPITE, MENDIPSITE and VAUXITE with PARAVAUXITE
8. Page 2 features assorted worldwide minerals (focusing on European localities) from the Kay Robertson Collection
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Fluorite (classic material)
La Viesca, La Collada, Asturias, Spain
12.0 x 6.8 x 5.7 cm
Pink Chalcedony (interesting locality)
Antelope Canyon (Valley) (part of the childhood home of Supreme Court Justice Sandra Day O'Connor), Round Mountain, Greenlee County, Arizona
5.7 x 3.1 x 2.2 cm
Smoky Quartz (gemmy "floater" crystal)
California Blue Mine, Yucca Valley, San Bernardino County, California
9.6 x 5.1 x 3.6 cm
Inesite (classic material) (ex Duarte Collection)
Hale Creek Mine, Mad River Rock, Coastal Range, Trinity County, California
7.3 x 6.3 x 3.8 cm
Amazonite (white cap crystals) (ex Dave Bergman Collection)
R. A. Kosnar claim on Yucca Hill, Steven's Ranch, near Lake George, Park County, Colorado
4.9 x 4.3 x 3.2 cm
Xenotime-(Y)
Novo Horizonte, Bahia, Brazil
1.8 x 0.6 x 0.6 cm
Tourmaline (doubly-terminated) (11.90 grams) (ex Rolando Gioia Collection)
Santa Rosa Mine, Doce Valley, Minas Gerais, Brazil
2.5 x 2.1 x 1.8 cm
Copper ("spinel twin")
Chino Mine, Santa Rita, Grant County, New Mexico
2.0 x 0.8 x 0.7 cm
Grossular (Chromian) (rich color) (ex Charlie Key Collection)
Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Quebec, Canada
2.7 x 1.4 x 1.1 cm
Scorodite (rare)
Baishiding Mine, Zhongshan Co., Hezhou Prefecture, Guangxi Zhuang Autonomous Region, China
2.0 x 1.3 x 0.9 cm
Fluorite (polished sphere) (rare locale) (191 grams)
Korabl Cape, Tersky Bereg, Murmanskaya Oblast', Northern Region, Russia
4.3 cm across
Calcite on Siderite (ex Dave Bergman Collection)
Billy Creek Wildlife Refuge, Ouray County, Colorado
4.1 x 2.7 x 1.8 cm
Vanadinite (ex Willard Wulff Collection)
Apache Mine, Radium, Burch area, Globe Hills, Globe Hills District, Globe-Miami District, Gila County, Arizona
11.8 x 6.2 x 2.3 cm
Dolomite ("phantom" twins) with Quartz
Pomba Pit, Serra das Eguas, Brumado, Bahia, Brazil
4.0 x 3.2 x 2.3 cm
Vauxite with Paravauxite and Childrenite
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for two species)
3.4 x 1.9 x 1.2 cm
Fairfieldite (classic material)
Foote Mine, Kings Mountain District, Cleveland County, North Carolina
2.6 x 2.5 x 1.2 cm
Microcline (large Carlsbad twin) with Schorl
Raikot, Chilas, Diamar District, Gilgit-Baltistan, Pakistan
8.4 x 7.8 x 5.7 cm
Vesuvianite (ex Charlie Key Collection)
Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Quebec, Canada
3.0 x 2.8 x 2.4 cm
Chalcopyrite (ex Dr. Stephen Smale Collection)
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
2.8 x 2.2 x 2.2 cm
Rutile (twin) (classic material)
Graves Mountain, Lincoln County, Georgia
4.2 x 3.3 x 2.6 cm
Ferronigerite-2N1S (very rare) (ex Charlie Key Collection)
Three Aloes Mine, Uis pegmatites, Uis, Damaraland District, Kunene Region, Namibia
0.5 x 0.4 x 0.1 cm
Brazilianite with Albite (ex Rolando Gioia Collection)
Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil
4.3 x 2.9 x 1.5 cm
Fluorite (classic material) (ex Kay Robertson Collection)
Felix Mine, Azusa, San Gabriel Mts, Los Angeles County, California
5.7 x 5.5 x 3.5 cm
Apatite with micro Tourmaline (ex Kay Robertson Collection)
Panasqueira Mine, Covilha, Castelo Branco District, Portugal
2.7 x 2.6 x 2.3 cm
Calcite (bladed "spar" crystals) (ex Kay Robertson Collection)
Hilton deposit, Borrego Springs, San Diego County, California
7.2 x 5.3 x 5.0 cm
Tetrahedrite (rare locality specimen) (ex Kay Robertson Collection)
Pulacayo Mine, Huanchaca, Antonio Quijarro Province, Potosu Department, Bolivia
3.7 x 2.3 x 1.4 cm
Pyromorphite (rare locality specimen) (ex Kay Robertson Collection)
Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
6.7 x 3.7 x 2.3 cm
Copper with Malachite (rare locality specimen) (ex Kay Robertson Collection)
Cape Calamita Mine, Capoliveri, Elba Island, Livorno Province, Tuscany, Italy
3.1 x 2.3 x 1.1 cm