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WEEKLY MINERAL & GEM AUCTIONS !

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Welcome to our mineral auction website. Thousands of mineral specimens sold - including fluorite, rhodochrosite and many other rocks and minerals. Please read the bidding rules and regs before bidding. Enjoy! 


OVER 50,000 FINE MINERAL SPECIMENS, 

& 1000's of gemstones  SOLD since 2002!

NEW FINE MINERAL SPECIMEN LIQUIDATION AUCTIONS

are POSTED EACH WEEKEND

Who are we and why are we doing this?
Welcome to the largest and most diverse single-source site for fine minerals and mineral specimens at auction. This is an inventory LIQUIDATION venue,adjunct to our gallery site :

www.iRocks.com

where you can find thousands of mineral & rock specimens, and mineral collections, for sale in a Gallery setting. 

Current Auctions

MINERAL COLLECTION LIQUIDATION AUCTIONS - end April 17

Specimens Available: 48

Ends April 17, 2014
at 6:30 PM (Central Time Zone)
This mineral liquidation auction features mineral specimens from old fine mineral and classic mineral collections that we are dispersing, including more rare USA and worldwide classics from the Trimingham and Obodda collections!

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends April 17th

Specimens Available: 30

Ends Thursday, April 17th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends April 17th

Specimens Available: 30

Ends Thursday, April 17th, 2014 at 7:00 PM (Central Time)

Here we have one of our popular combined auction of mixed gems of varying reserve prices ($25 and $10 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here


Closed Auctions

MINERAL COLLECTION LIQUIDATION AUCTIONS - end April 10

Ends April 10, 2014
at 6:30 PM (Central Time Zone)
This mineral liquidation auction features 60 mineral specimens from old fine mineral and classic mineral collections that we are dispersing, including more rare USA and worldwide classics from the Trimingham and Obodda collections!

SPECIAL MIXED HIGHER RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends April 10th

Ends Thursday, April 10th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices (mostly $100 and $50 this week – with one $400 item and one $25 item)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends April 10th

Ends Thursday, April 10th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

SPECIAL $999-RESERVE FINE MINERAL AUCTION - ends April 10, 2014

Ends April 10
at 6:15 PM (Central Time Zone)


A special and varied mix of fine, higher-$$$ specimens up for sale at $999 reserves. GEM CRYSTALS & OLD CLASSIC MINERAL SPECIMENS are included here. Due to demand, we will again regularly produce such auctions through the summer. Enjoy!

MINERAL SPECIMEN AUCTIONS - end April 3

Ends April 3, 2014
at 6:30 PM (Central Time Zone)
This mineral liquidation auction features 60 mineral specimens from old collections we are dispersing, including more rare USA and worldwide classics from the Trimingham collection!

$50, $25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends April 3rd

Ends Thursday, April 3rd, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($50, $25 and $10 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends April 3rd

Ends Thursday, April 3rd, 2013 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

SPECIAL MIXED HIGHER RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends March 27th

Ends Thursday, March 27th, 2014 at 7:00 PM (Central Time)

Our popular condensed selection of special higher reserve items – with more valuable stones, and even some occasional custom faceted gems from Brett and Allyce Kosnar of Kosnar Gem Co. (www.kosnargemco.com)
Better items, all together on one page with less repetition from previous weeks – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends March 27th

Ends Thursday, March 27th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

MINERAL SPECIMEN (and Book!) LIQUIDATION AUCTIONS - ends March 27

Ends March 27, 2014
at 6:30 PM (Central Time Zone)
This mineral liquidation auction features 60 mineral specimens from old collections we are dispersing, including more very rare USA and worldwide classics from the Trimingham collection! Look for a huge Montana COVELLITE, old European classics, and others.

ADDED THIS WEEK: MINERALOGICAL BOOKS from the Carmichael collection.

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends March 20th

Ends Thursday, March 20th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($25 and $10 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends March 20th

Ends Thursday, March 20th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

MIXED FINE MINERAL SPECIMEN AUCTIONS - ends March 20

Ends March 20, 2014
at 6:30 PM (Central Time Zone)
A new auction featuring 3 pages of specimens from our inventory, new mineral acquisitions and special selections from recent collections we’ve purchased. Look for special highlights including RARE SPECIES, A HISTORIC RHODOCHROSITE FROM THE ARCHDUKE STEPHAN HABSBURG COLLECTION, AND A MAJOR NAGAR AQUAMARINE MATRIX CLUSTER. Enjoy!

SPECIAL MIXED HIGHER RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends March 13th

Ends Thursday, March 13th, 2014 at 7:00 PM (Central Time)

Our popular condensed selection of special higher reserve items – with more valuable stones. This week’s auction features stones ranging from $300 reserves down to $50

Better items, all together on one page with less repetition from previous weeks – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends March 13th

Ends Thursday, March 13th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

FINE MINERAL SPECIMENS LIQUIDATION AUCTION - ends March 13

Ends March 13, 2014
at 6:30 PM (Central Time Zone)
This week we have a great auction featuring over 3 pages of specimens from our inventory, new mineral acquisitions and special selections from recent collections we’ve purchased. There are plenty of unique pieces, classic specimens, interesting localities, rare minerals and hard to find material in this week’s auction! Enjoy!

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends March 6th

Ends Thursday, March 6th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($25 and $10 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends March 6th

Ends Thursday, March 6th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

POST-TUCSON MINERAL SPECIMENS LIQUIDATION AUCTION - ends March 6

Ends March 6, 2014
at 6:30 PM (Central Time Zone)
A post-Tucson auction featuring over 60 specimens from our inventory and special selections from recent collection acquisitions. This week features plenty of unique pieces, classic specimens, interesting localities, rare minerals and hard to find material in this week’s auction!

POST-TUCSON MINERAL SPECIMENS LIQUIDATION AUCTION - ends Feb 27

Ends Feb 27, 2014
at 6:30 PM (Central Time Zone)
A post-Tucson auction featuring 60 specimens from our inventory and special selections from recent collection acquisitions. This week features plenty of unique pieces, classic specimens, interesting localities, rare minerals and hard to find material in this week’s auction!

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends February 27th

Ends Thursday, February 27th, 2014 at 6:45 PM (Central Time)

SPECIMENS ON TWO PAGES – this week only !!

Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces and Bolivian specimens).

SPECIAL $100 and $50 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends February 27th

Ends Thursday, February 27th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($100 and $50 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

$50, $25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends February 20th

Ends Thursday, February 20th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($50, $25 and $10 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends February 20th

Ends Thursday, February 20th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

SPECIAL MINERAL AUCTION: old CHARLIE KEY MINERAL COLLECTION & mineral dealer stock (ends FEB 20)

Ends Thursday Feb 20, 2013
at 630 PM (Central Time Zone)!

Liquidation auctions of the vast mineral collections and mineral inventory hoarded by legendary mineral dealer, Charlie Key, over in Africa during the 1970s-1990s. A huge variety, from rarities to superb thumbnails and locality pieces, is presented here. THIS IS PROBABLY OUR LAST FULL AUCTION SET FROM THIS COLLECTION !

SPECIAL $100 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends February 13th

Ends Thursday, February 13th, 2014 at 7:00 PM (Central Time)

Our popular condensed selection of special $100 reserve items – with more valuable stones, and even some occasional custom faceted gems from Brett and Allyce Kosnar of Kosnar Gem Co. (www.kosnargemco.com)
Better items, all together on one page with less repetition from previous weeks – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

MINERAL COLLECTION & STOCK LIQUIDATION AUCTIONS - ends Feb 13, 2014

Ends February 13, 2014
at 6:30 PM (Central Time Zone)
A page of mixed mineral specimens plus special selections from recent acquisitions and our inventory! Attractive classic mineral specimens, gem crystals, contemporary localities, etc. from notable collections such as: Charlie Key, Whitmore, Hauck, and a few goodies from the world famous collection of Herb Obodda.

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends February 13th

Ends Thursday, February 13th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

CONSIGNMENT MINERALS and KOSNAR COLLECTION and INVENTORY AUCTIONS - Ends February 6th

Ends Thursday, February 6th, 2014 at 6:45 PM (Central Time)
Consignments from the Kosnar family collections and inventory (with classic minerals, unusual pieces, rarities and Bolivian specimens).

PRE-TUCSON MINERAL SPECIMENS AUCTION #2 - end Feb 6

Ends Feb 6, 2014
at 6:30 PM (Central Time Zone)
We have pulled through the last several collections, some of which we planned to sell at Tucson, and pulled EVEN MORE for the next few auction offerings! See here some unique pieces, classic specimens, interesting localities, rare minerals and hard to find material from recently acquired mineral collections such as Trimingham, and Obodda!

$50 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends February 6th

Ends Thursday, February 6th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($50 and $10 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

SPECIAL $100 and $50 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends January 30th

Ends Thursday, January 30th, 2014 at 7:00 PM (Central Time)

Another one of the newly instituted and popular combined auction of mixed gems of varying reserve prices ($100 and $50 respectively this week)
Unique and attractive items as always – check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here