Announcements

Bidding Rules & Regs

Live-Ending Auction & Proxy Bid Rules, click here for more info.

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday March 8th, 2018

Displaying 1-30 of 59 results...

  1 2 Next >

Grossular (classic material)
Jeffrey Quarry, Asbestos, Richmond Co., Quebec, Canada
Size:Thumbnail
Size Description: 3.1 x 1.5 x 0.8 cm

Grossular (classic material)

Current High Bidder:karose1
Close Time:3/8/2018 06:57:45 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Opal (27 grams)
Opal Butte, Morrow County, Oregon
Size:Small Cabinet
Size Description: 5.7 x 2.9 x 2.0 cm

Opal (27 grams)

Current High Bidder:karose1
Close Time:3/8/2018 06:56:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Emerald ("Trapiche" habit)
Muzo Mine, Mun. de Muzo, Vasquez-Yacopí Mining District, Boyacá Department, Colombia
Size:Thumbnail
Size Description: 0.5 x 0.5 x 0.2 cm

Emerald (

Current High Bidder:karose1
Close Time:3/8/2018 06:52:38 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Chiavennite (very rare) (ex Dr. Federico Pezzotta specimen)
Sakavalana mine, Ambatovita, Mandrosonoro Commune, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Size:Miniature
Size Description: 4.0 x 1.3 x 1.3 cm

Chiavennite (very rare) (ex Dr. Federico Pezzotta specimen)

Current High Bidder:paulcon
Close Time:3/8/2018 06:49:35 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Alexandrite ("sixling" twins) (ex Rolando Gioia Collection)
Carnaiba mining district, Pindobacu, Campo Formoso ultramafic complex, Bahia, Brazil
Size:Small Cabinet
Size Description: 7.3 x 5.1 x 2.2 cm

Alexandrite (

Current High Bidder:aloharocks
Close Time:3/8/2018 06:49:32 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Uvite Tourmaline (unusually prismatic) on Magnesite (ex Rolando Gioia Collection)
Pomba Pit, Serra das Eguas, Brumado, Bahia, Brazil
Size:Miniature
Size Description: 4.7 x 4.0 x 1.7 cm

Uvite Tourmaline (unusually prismatic) on Magnesite (ex Rolando Gioia Collection)

Current High Bidder:mpjmt22
Close Time:3/8/2018 06:49:25 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Epistilbite (rare zeolite)
Jalgaon, Maharashtra State, India
Size:Small Cabinet
Size Description: 6.3 x 4.3 x 3.2 cm

Epistilbite (rare zeolite)

Current High Bidder:karose1
Close Time:3/8/2018 06:48:23 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Wulfenite on Descloizite (ex Kay Robertson Collection)
79 Mine, Hayden area, Banner District, Dripping Spring Mts, Gila County, Arizona
Size:Small Cabinet
Size Description: 6.5 x 4.8 x 2.7 cm

Wulfenite on Descloizite (ex Kay Robertson Collection)

Current High Bidder:azjcg
Close Time:3/8/2018 06:48:06 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Sphalerite on Pyrite (ex Rolando Gioia Collection)
Casapalca Mine, Casapalca, Huarochiri Province, Lima Department, Peru
Size:Miniature
Size Description: 3.6 x 2.8 x 2.7 cm

Sphalerite on Pyrite (ex Rolando Gioia Collection)

Current High Bidder:karose1
Close Time:3/8/2018 06:47:39 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Diopside (Chromian Diopside) (ex Albert Sebela and Frank Levy Collections)
Outokumpu Deposit, Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, Eastern Finland Region, Finland
Size:Miniature
Size Description: 3.7 x 3.2 x 2.3 cm

Diopside (Chromian Diopside) (ex Albert Sebela and Frank Levy Collections)

Current High Bidder:karose1
Close Time:3/8/2018 06:47:19 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Wavellite on slate (old classic) (ex Kay Robertson Collection)
High Down Quarry, Filleigh, North Devon, Devon, England, UK (Type Locality)
Size:Small Cabinet
Size Description: 6.3 x 3.1 x 1.3 cm

Wavellite on slate (old classic) (ex Kay Robertson Collection)

Current High Bidder:cookieman
Close Time:3/8/2018 06:47:17 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Catapleite
Poudrette quarry (Demix quarry) Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada
Size:Thumbnail
Size Description: 1.1 x 0.8 x 0.6 cm

Catapleite

Current High Bidder:blmineral
Close Time:3/8/2018 06:46:34 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Turquoise
Gunheath China Clay Pit, Stenalees, Treverbyn, St Austell District, Cornwall, England, UK
Size:Miniature
Size Description: 4.3 x 4.1 x 2.3 cm

Turquoise

Current High Bidder:karose1
Close Time:3/8/2018 06:45:50 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Pink Opal (new find)
Pisco Province, Ica Department, Peru
Size:Miniature
Size Description: 4.8 x 2.7 x 2.0 cm

Pink Opal (new find)

Current High Bidder:macau1
Close Time:3/8/2018 06:45:23 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Aquamarine (124 grams)
Minas Gerais, Brazil
Size:CABINET
Size Description: 10.3 x 2.6 x 2.1 cm

Aquamarine (124 grams)

Current High Bidder:atrease
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Topaz and Quartz on Magnesite
Brumado, Bahia, Brazil
Size:Miniature
Size Description: 3.7 x 2.8 x 1.6 cm

Topaz and Quartz on Magnesite

Current High Bidder:escalade1602
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Dioptase (good quality) with Mottramite
Kimbedi, Mindouli District, Pool Department, Republic of Congo (Brazzaville)
Size:Miniature
Size Description: 4.4 x 3.3 x 2.9 cm

Dioptase (good quality) with Mottramite

Current High Bidder:jlk
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Calcite (bicolor - two generations)
Xianghualing Mine, Linwu County, Chenzhou Prefecture, Hunan Province, China
Size:Small Cabinet
Size Description: 5.7 x 5.0 x 3.2 cm

Calcite (bicolor - two generations)

Current High Bidder:pseudo
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Heliodor (ex Rolando Gioia Collection) (128 grams)
Minas Gerais, Brazil
Size:LARGE CABINET
Size Description: 15.7 x 3.1 x 1.5 cm

Heliodor (ex Rolando Gioia Collection) (128 grams)

Current High Bidder:killacam21
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Rhodochrosite
Poudrette Quarry (Demix Quarry) Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Size:Thumbnail
Size Description: 2.0 x 1.6 x 0.8 cm

Rhodochrosite

Current High Bidder:fifedog
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Halite with rare Tolbachite inclusions (new find)
Sieroszowice Mine, Polkowice District, Legnica, Lower Silesia, Poland
Size:Toenail
Size Description: 3.2 x 2.1 x 1.6 cm

Halite with rare Tolbachite inclusions (new find)

Current High Bidder:mattm
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Aquamarine
Pingwu Beryl Mine, Huya township, Mt Xuebaoding, Pingwu Co., Mianyang Prefecture, Sichuan Province, China
Size:Miniature
Size Description: 3.7 x 2.7 x 1.3 cm

Aquamarine

Current High Bidder:fbarchitects528
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Vauxite with Paravauxite, Metavauxite and Sigloite (rare material)
Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for four species)
Size:CABINET
Size Description: 10.2 x 9.5 x 3.8 cm

Vauxite with Paravauxite, Metavauxite and Sigloite (rare material)

Current High Bidder:chuckd
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Gold
Eagle's Nest Mine (Mystery Wind Mine), Sage Hill, Michigan Bluff District, Placer County, California
Size:Thumbnail
Size Description: 0.6 x 0.4 x 0.1 cm

Gold

Current High Bidder:karose1
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Quartz (with 2 water bubble inclusions)
Cong Ly (Cong Li), Hunan Province, China
Size:Small Cabinet
Size Description: 6.7 x 2.0 x 1.5 cm

Quartz (with 2 water bubble inclusions)

Current High Bidder:tejas
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Fluorite with Celestine (classic material)
Clay Center, Ottawa County, Ohio
Size:Small Cabinet
Size Description: 6.6 x 4.0 x 3.5 cm

Fluorite with Celestine (classic material)

Current High Bidder:jlk
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Prehnite (rare locality specimen) (ex Kay Robertson and Hemann Kraft Collections)
Schonlautenbach, Idar-Oberstein, Hunsruck, Rhineland-Palatinate, Germany
Size:Small Cabinet
Size Description: 7.8 x 6.2 x 4.2 cm

Prehnite (rare locality specimen) (ex Kay Robertson and Hemann Kraft Collections)

Current High Bidder:jolib
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Bismuthinite (rare locality specimen)
Carrock Mine, Carrock Fell, Caldbeck Fells, Cumbria, England, UK
Size:Miniature
Size Description: 4.6 x 4.4 x 3.6 cm

Bismuthinite (rare locality specimen)

Current High Bidder:wobe2
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Cassiterite (gemmy crystal)
Rossarden district, Northern Midlands municipality, Tasmania, Australia
Size:Thumbnail
Size Description: 1.5 x 1.3 x 0.3 cm

Cassiterite (gemmy crystal)

Current High Bidder:gram1950
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

Brookite on matrix
Kharan, Baluchistan, Pakistan
Size:Small Cabinet
Size Description: 6.7 x 3.2 x 2.6 cm

Brookite on matrix

Current High Bidder:pseudo
Close Time:3/8/2018 06:45:00 PM(CST)

Time Left:Auction Is Closed

View Auction Details

  1 2 Next >