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 May 17th, 2018

Displaying 1-30 of 45 results...

  1 2 Next >

Brochantite (rare locality specimen) (ex Kay Robertson Collection)
Bou Beker, Touissit-Bou Beker District, Jerada Province, L'oriental Region, Morocco
Size:Small Cabinet
Size Description: 6.7 x 5.0 x 4.2 cm

Current Bid:$140

Brochantite (rare locality specimen) (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 07:02:48 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Samarskite-(Y) (very rare locality specimen) (ex Kay Robertson Collection)
Nuevo Mine (Nuevo Quarry), Nuevo, Lakeview Mts, Riverside County, California
Size:Thumbnail
Size Description: 2.1 x 1.9 x 1.3 cm

Current Bid:$86

Samarskite-(Y) (very rare locality specimen) (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:gatewayrock
Close Time:5/17/2018 07:01:22 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Uraninite with Rutherfordine coating (very rare) (ex Kay Robertson Collection)
Lukwengule, Uluguru Mts (Uruguru Mts), Morogoro Region, Tanzania (Type Locality for Rutherfordine)
Size:Thumbnail
Size Description: 1.7 x 1.5 x 1.3 cm

Current Bid:$175

Uraninite with Rutherfordine coating (very rare) (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:57:39 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Adamite (classic material) (ex Kay Robertson Collection)
Ojuela Mine, Mapimi, Durango, Mexico
Size:Small Cabinet
Size Description: 7.6 x 6.6 x 5.1 cm

Current Bid:$159

Adamite (classic material) (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:oldrock
Close Time:5/17/2018 06:52:54 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Rhodochrosite with Quartz
Sweet Home Mine, Mount Bross, Buckskin Gulch, Alma District, Park County, Colorado
Size:Miniature
Size Description: 4.1 x 3.8 x 2.6 cm

Current Bid:$150

Rhodochrosite with Quartz

Reserve Bid:$10
Current High Bidder:adgoreck
Close Time:5/17/2018 06:52:35 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Brookite
Kharan, Baluchistan, Pakistan
Size:Small Cabinet
Size Description: 7.3 x 7.0 x 4.6 cm

Current Bid:$68

Brookite

Reserve Bid:$10
Current High Bidder:moondoggie
Close Time:5/17/2018 06:49:59 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Goethite (fine botryoidal specimen) (ex Kay Robertson Collection)
Wolfsheim, Pfalz, Germany
Size:Small Cabinet
Size Description: 7.6 x 6.4 x 3.1 cm

Current Bid:$40

Goethite (fine botryoidal specimen) (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:49:48 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Azurite Nodule ("floater") (ex Mullane Collection)
Bisbee, Cochise County, Arizona
Size:Thumbnail
Size Description: 3.0 x 2.7 x 2.1 cm

Current Bid:$20

Azurite Nodule (

Reserve Bid:$10
Current High Bidder:moondoggie
Close Time:5/17/2018 06:49:26 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Bixbyite (rare locality)
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
Size:Thumbnail
Size Description: 2.7 x 1.7 x 1.3 cm

Current Bid:$35

Bixbyite (rare locality)

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:48:16 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Fluorite (GEM quality)
Llamas Quarry, Duyos, Obdulia vein, Caravia District, Caravia mining area, Asturias, Spain
Size:Thumbnail
Size Description: 1.4 x 1.1 x 0.9 cm

Current Bid:$150

Fluorite (GEM quality)

Reserve Bid:$10
Current High Bidder:mark.campbell06@charter.net
Close Time:5/17/2018 06:47:55 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Azurite partially altering to Malachite (classic material) (ex Kay Robertson Collection)
105 Stope, 1900' Level, Campbell Shaft, Bisbee, Warren District, Mule Mts, Cochise County, Arizona
Size:Small Cabinet
Size Description: 6.3 x 5.7 x 4.2 cm

Current Bid:$149

Azurite partially altering to Malachite (classic material) (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:moondoggie
Close Time:5/17/2018 06:47:26 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Talc (var: Steatite) pseudomorph after Mica Schist (ex Kay Robertson Collection)
Johannes Mine, Göpfersgrün, Wunsiedel, Fichtelgebirge, Franconia, Bavaria, Germany
Size:Small Cabinet
Size Description: 7.2 x 6.9 x 2.6 cm

Current Bid:$35

Talc (var: Steatite) pseudomorph after Mica Schist (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:cookieman
Close Time:5/17/2018 06:47:10 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Phosphophyllite ("butterfly" twins)
Huayllani mine, Infiernillos mine, Huayllani, Machacamarca District, Saavedra Province, Potosi Department, Bolivia
Size:Toenail
Size Description: 3.2 x 3.2 x 2.0 cm

Current Bid:$70

Phosphophyllite (

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:47:04 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Bournonite on Quartz
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
Size:Small Cabinet
Size Description: 7.2 x 4.7 x 2.7 cm

Current Bid:$45

Bournonite on Quartz

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:46:43 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Schorl on gneiss (ex Kay Robertson Collection)
Binntal, Wallis (Valais), Switzerland
Size:Small Cabinet
Size Description: 8.1 x 3.6 x 2.1 cm

Current Bid:$35

Schorl on gneiss (ex Kay Robertson Collection)

Reserve Bid:$10
Current High Bidder:karose1
Close Time:5/17/2018 06:46:37 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Quartz (unique material) (ex Brian Kosnar Collection)
Banska Stiavnica (Schemnitz), Banska Bystrica Region, Slovakia
Size:Small Cabinet
Size Description: 7.8 x 6.1 x 3.1 cm

Current Bid:$62

Quartz (unique material) (ex Brian Kosnar Collection)

Reserve Bid:$10
Current High Bidder:cookieman
Close Time:5/17/2018 06:46:32 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Quartz (GEM quality) with iron oxide inclusions (ex Rolando Gioia Collection)
Diamantina, Minas Gerais, Brazil
Size:CABINET
Size Description: 14.7 x 3.1 x 2.2 cm

Current Bid:$210

Quartz (GEM quality) with iron oxide inclusions (ex Rolando Gioia Collection)

Reserve Bid:$10
Current High Bidder:gt818
Close Time:5/17/2018 06:46:30 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Analcime (ex Charlie Key Collection)
Poudrette Quarry (Demix Quarry) Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Size:Thumbnail
Size Description: 3.1 x 3.1 x 2.6 cm

Current Bid:$61

Analcime (ex Charlie Key Collection)

Reserve Bid:$10
Current High Bidder:gatewayrock
Close Time:5/17/2018 06:45:24 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Bayldonite (rare locality specimen) (ex Paul Lowe Collection)
Penberthy Croft Mine, St Hilary, Cornwall, England, UK (Type Locality)
Size:Small Cabinet
Size Description: 6.3 x 5.3 x 3.7 cm

Current Bid:$51

Bayldonite (rare locality specimen) (ex Paul Lowe Collection)

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:45:17 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Cafarsite (rare arsenate)
Wannigletscher / Scherbadung (Monte Cervandone), Kriegalp Valley, Binn Valley, Wallis (Valais), Switzerland (Type Locality)
Size:Miniature
Size Description: 4.3 x 2.3 x 1.7 cm

Current Bid:$95

Cafarsite (rare arsenate)

Reserve Bid:$10
Current High Bidder:lawkivi
Close Time:5/17/2018 06:45:16 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Mimetite (classic material)
Ojuela Mine, Mapimi, Durango, Mexico
Size:Small Cabinet
Size Description: 4.7 x 2.2 x 1.6 cm

Current Bid:$75

Mimetite (classic material)

Reserve Bid:$10
Current High Bidder:keith
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Uvite Tourmaline (pleochroic purple and green) on Magnesite
Pomba Pit, Serra das Eguas, Brumado, Bahia, Brazil
Size:Miniature
Size Description: 4.7 x 4.0 x 1.7 cm

Current Bid:$10

Uvite Tourmaline (pleochroic purple and green) on Magnesite

Reserve Bid:$10
Current High Bidder:everett278
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Rhodochrosite with Quartz (ex Dave Bergman Collection)
Sunnyside Mine, near Silverton, San Juan County, Colorado
Size:Miniature
Size Description: 3.5 x 3.2 x 2.9 cm

Current Bid:$33

Rhodochrosite with Quartz (ex Dave Bergman Collection)

Reserve Bid:$10
Current High Bidder:karose1
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Opal-AN (Hyalite Opal)
Chalk Mountain Mine, Spruce Pine, Spruce Pine District, Mitchell County, North Carolina
Size:CABINET
Size Description: 11.3 x 5.7 x 1.8 cm

Current Bid:$60

Opal-AN (Hyalite Opal)

Reserve Bid:$10
Current High Bidder:lawkivi
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Grosslar Garnet (rare GEM QUALITY colorless crystal)
Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Quebec, Canada
Size:Thumbnail
Size Description: 1.3 x 1.0 x 1.0 cm

Current Bid:$87

Grosslar Garnet (rare GEM QUALITY colorless crystal)

Reserve Bid:$10
Current High Bidder:ericclapton
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Rhodonite (ex Rolando Gioia Collection)
Morro da Mina Mine, Conselheiro Lafaiete, Minas Gerais, Brazil
Size:Toenail
Size Description: 3.2 x 1.3 x 1.1 cm

Current Bid:$24

Rhodonite (ex Rolando Gioia Collection)

Reserve Bid:$10
Current High Bidder:dlue1982
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Ferberite (classic material)
Panasqueira Mines, Covilha, Castelo Branco District, Portugal
Size:Thumbnail
Size Description: 3.1 x 1.6 x 1.5 cm

Current Bid:$10

Ferberite (classic material)

Reserve Bid:$10
Current High Bidder:lunareclipse33
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Brucite (good color)
Baluchistan, Pakistan
Size:Miniature
Size Description: 3.7 x 2.6 x 1.1 cm

Current Bid:$83

Brucite (good color)

Reserve Bid:$10
Current High Bidder:patchfinder
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Tourmaline (tri-color) (39.82 grams)
Paprok Mine, Kamdesh District, Nuristan Province, Afghanistan
Size:Miniature
Size Description: 5.0 x 2.1 x 1.8 cm

Current Bid:$1,225

Tourmaline (tri-color) (39.82 grams)

Reserve Bid:$10
Current High Bidder:guldyrocks
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

Amazonite (rare "striped" crystals) (ex Dave Bergman Collection)
R. A. Kosnar claim on Yucca Hill, Steven's Ranch, near Lake George, Park County, Colorado
Size:Small Cabinet
Size Description: 5.3 x 4.1 x 2.6 cm

Current Bid:$201

Amazonite (rare

Reserve Bid:$10
Current High Bidder:otis2005
Close Time:5/17/2018 06:45:00 PM(CDT)

Time Left:Auction Is Closed

View Auction Details

  1 2 Next >