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WEEKLY MINERAL & GEM AUCTIONS !

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 regulations before bidding. Enjoy!

If you're new to the site, you can register here.


Over 60,000 fine minerals, crystals and gemstones sold since 2002!
New mineral auctions are posted each week.


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

The Arkenstone, www.iRocks.com

If you're looking for a specific mineral, locality, or price point, visit www.iRocks.com and browse our extensive selection of fine minerals, crystals, and gemstones for sale.

 

 

Current Auctions

GIANT DENVER SHOW MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 1 of 2) - end September 21st, 2017

Specimens Available: 60

Ends Thursday, September 21st, 2017
at 6:30 PM (Central Time Zone)

We have a double-set of SPECIAL DENVER SHOW auctions this week, loaded with pieces that we set back, and normally would have offered our buyers at the main show, but just didn't have room. We have a great mix of classic, contemporary pieces, rarities and gem crystals! Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Classic, rare matrix LEGRANDITE from the Ojuela Mine, Mexico
2. Showy and very good sized crystals of GORMANITE on matrix from Rapid Creek, Canada (ex Francesco Bedogné Collection)
3. A colorful and hard to find piece of multicolor OPAL replacing Petrifed Wood from Virgin Valley, Nevada (ex Kay Robertson Collection)
4. Wonderful cabinet display specimen of gemmy beautifully crystallized FLUORITE from the Jaimina Mine, Spain (ex Herb Obodda)
5. Classic and hard to find specimen of purplish APATITE on matrix from the Foote Mine in North Carolina
6. A wonderful display specimen of large robust VANADINITE crystals from the uncommon locality of Touissit, Morocco (ex Franceso Bedogné Collection)

GIANT DENVER SHOW MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end September 21st, 2017

Specimens Available: 60

Ends Thursday, September 21st, 2017
at 6:30 PM (Central Time Zone)

We have a double-set of SPECIAL DENVER SHOW auctions this week, loaded with pieces that we set back, and normally would have offered our buyers at the main show, but just didn't have room. We have a great mix of classic, contemporary pieces, rarities and gem crystals! Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Excellent, classic, gemmy beautiful green colored EPIODTE crystals with minor "Byssolite" (ex Richard A. Kosnar Collection
2. A superb, highly lustrous and VERY gemmy, bi-colored pink and green TOURMALINE from the Himalaya Mine in California.
3. Beautiful and sought after gemmy green ANDRADITE (var: Demantoid) (with rare chrome-green crystals!) from Italy
4. RARELY seen doubly-terminated, bi-color BLUE (Aquamarine and PINK (Morganite) BERYL crystal on matrix from Pakistan.
5. A GEM QUALITY colorless CALCITE crystal from China.
6. Desirable, rare and eye-catching electric midnight blue LINARITE crystals on matrix from the Grand Reef Mine in Arizona.
7. Hard to find doubly-terminated, steel-grey colored BOURNONITE crystal group from Bolivia.
8. Incredibly impressive important and HISTORIC piece of GEM QUALITY synthetic QUARTZ specimen from the old Bell Labs in New Jersey

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends September 21, 2017

Specimens Available: 21

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

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends September 14th, 2017

Ends Thursday, September 14th, 2017 at 7:00 PM (Central Time Zone)

ATTENTION! We are pleased to announce that we have purchased a notable collection / supply from a retiring gem dealer of beautiful mixed stones, cabochons and jewelry which we will be offering at liquidation prices!!

Keep watching every week for a great mix and new variety of good quality gemstones to appear over the following months. Reserve prices will typically be $100 and $50 on the better material every other week, with $25 and $10 reserves on alternating weeks.
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

PRE-DENVER MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end September 14th, 2017

Ends Thursday, September 14th, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. A gemmy, very sharp, well-formed, purple 206 gram KUNZITE crystal group from Afghanistan
2. Excellent, GEMMY, purple and blue cubic phantom FLUORITE specimen from Illinois (ex Paul Zerfass Collection)
3. Rare purplish colored gemmy DIASPORE crystal from Myanmar (Burma)
4. An historic and beautiful specimen of CHRYSOCOLLA from Globe, Arizona that was sold by Arthur Montgomery!!
5. A BIG modified crystal of HIGHLY LUSTROUS PYRITE (weighing over 1,700 grams) from Merelani, Tanzania
6. Rarities include: "CASWELLITE", FERGUSONITE, FERRIERITE-(Mg), LORENZENITE, and a FINE quality specimen of the rare lead antimony sulfosalt SEMSEYITE!

SPECIAL PRE-DENVER SHOW FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end Thursday, Sept. 14, 2017 (set 1 of 2)

Ends Thursday, Sept. 14, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories, s you cannot easily find in today's market.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week’s include:
1. TOURMALINES
2. Rarities & classic from the Kay Robertson and Paul Zerfass Collections
3. Large & rare MOLYBDENITE in QUARTZ
4. Fine large French SMOKY QUARTZ
5. Superb old Bisbee MALACHITE pseudomorph
6. Rare Tsumeb AZURITE & QUARTZ TN
7. Large FLUORITE from a NEW Chinese find
8. Superb old $2000 Cornwall CHALCOCITE and Cavradi HEMATITE
9. Large rare FAIRFIELDITE xl

GIANT PRE-DENVER SHOW FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end Thursday, Sept. 7, 2017 (set 1 of 2)

Ends Thursday, Sept. 7, 2017
at 6:30 PM (Central Time Zone)

THREE PAGES FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories that you cannot as easily find in today's market as in the past.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week’s include:
1. Fine rare old Butte BORNITE pseudomorph
2. Excellent BENITOITE and NEPTUNITE plates
3. Classics and rarities from the Kay Robertson and Bruce Murphy Collections
4. Large Pennsylvania CALCITE
5. Old gem FLUORITE xls from the Heights Mine
6. RARE large pseudo of QUARTZ after CALCITE
7. Superb old Mina Ojuela ADAMITE ball

PRE-DENVER SHOW FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end September 7th, 2017

Ends Thursday, September 7th, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. A gemmy, DOUBLY-TERMINATED, bicolored 260 gram KUNZITE crystal from Afghanistan
2. Showy and eye-catching specimen of QUARTZ coating MALACHITE pseudomorphs after AZURITE from the Piedmont Mine in Arizona
3. Gorgeous multi-colored group of spherical SMITHSONITE on matrix from Choix, Mexico
4. Beautiful gemmy, rich orange-pink colored DOUBLY-TERMINATED BUSTAMITE crystal on matrix from Australia (ex Francesco Bedogné Collection)
5. A classic specimen of CHALCOCITE pseudomorphing after COVELLITE from Butte, Montana
6. Showy metallic MOLYBDENITE specimen from Kingsgate, New South Wales, Australia

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends September 7, 2017

Ends September 7th, 2017 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

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends August 31st, 2017

Ends Thursday, August 31st, 2017 at 7:00 PM (Central Time Zone)

ATTENTION! We are pleased to announce that we have purchased a notable collection / supply from a retiring gem dealer of beautiful mixed stones, cabochons and jewelry which we will be offering at liquidation prices!!

Keep watching every week for a great mix and new variety of good quality gemstones to appear over the following months. Reserve prices will typically be $100 and $50 on the better material every other week, with $25 and $10 reserves on alternating weeks.
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

PRE-DENVER SHOW MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION - end Aug 31st, 2017

Ends Thursday, August 31st, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. GEMMY bi-color pink and soft blue TOURMALINE from Afghanistan
2. INTENSE blue colored, gemmy cubic FLUORITE from Illinois (ex Kay Robertson Collection)
3. A beautiful CASSITERITE with AQUAMARINE on MUSCOVITE from BRAZIL that looks like it could be Chinese!
4. VERY HARD TO FIND NATIVE SILVER on matrix from Langban, Sweden!!
5. Classic "Rainbow" ANDRADITE GARNET from the Kohse Mine in Japan
6. Rarities include: ROXBYITE, HYDROXYLELLESTADITE, LEMMLEINITE-(Ba), COWLESITE, NENADKEVICHITE and KOSNARITE

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends August 24th, 2017

Ends August 24th, 2017 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

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end Aug 24th, 2017

Ends Thursday, August 24th, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Beautiful, classic orange PYROMOPRHITE crystals on matrix from the Bunker Hill Mine in Idaho
2. Rarely seen twinned CASSITERITE with TOURMALINE from the Viloco Mine in Bolivia
3. A very gemmy, fine quality, "Alpine"-type APATITE from Pakistan " plus another APATITE with green "Byssolite" inclusions from another find in Pakistan
4. A HARD TO FIND HEMATITE specimen from the Kay Robertson Collection from Naica, Mexico!
5. Lovely bi-color blue and colorless "phantom" FLUORITE from a new find in Pakistan
6. A 315 gram light blue color TOPAZ crystal from Brazil from the Paul Zerfass Collection

FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end Thursday, Aug 24, 2017 (set 1 of 2)

Ends Thursday, August 24, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories that you cannot as easily find in today's market as in the past.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week’s include:
1. Rich CUPRITE from Milpillas
2. Classics and rarities from the Kay Robertson Collection
3. Large Tsumeb WULFENITE xls with COPPER & DOLOMITE
4. Rare ORE specimens from the Renaud Vochten Collection
5. Large GEM spinel-twinned FLUORITE from Pakistan
6. Bisbee CALCITE with MALACHITE
7. Rare large MOHAWKITE
8. Sharp CARROLLITE xl
9. Fine NEPTUNITE
10. Rare old Ivigtut, Greenland COLUMBITE

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends August 17th, 2017

Ends Thursday, August 17th, 2017 at 7:00 PM (Central Time Zone)

ATTENTION! We are pleased to announce that we have purchased a notable collection / supply from a retiring gem dealer of beautiful mixed stones, cabochons and jewelry which we will be offering at liquidation prices!!

Keep watching every week for a great mix and new variety of good quality gemstones to appear over the following months. Reserve prices will typically be $100 and $50 on the better material every other week, with $25 and $10 reserves on alternating weeks.
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end Thursday, Aug 17, 2017 (set 1 of 2)

Ends Thursday, August 17, 2017
at 6:30 PM (Central Time Zone)

This week's auction is filled with new material from old collections, including a number of FINE OLD CLASSICS VALUED OVER $2000 - starting at $10!

FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories that you cannot as easily find in today's market as in the past.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week’s include:
1. Fine POWELLITE and APOPHYLLITE valued over $2000
2. Rare style, large valuable CHINESE BLUE PLUMBOGUMMITE pseudomorph
3. Classics and rarities from the Kay Robertson Collection
4. Rare fine AUGITE xl from Franklin
5. Superb old COBALTITE from Sweden
6. RARE Arizona AURICHALCITE and WULFENITE from old localities
7. Exceptional color-zoned OKORUSU PHANTOM FLUORITE from 1980s finds!
8. Superb rare old Michigan COPPER valued over $2000- rare locality!
9. Large Elmwood CALCITE CLUSTER from the 1980s
10. Specimens from the Paul Zerfass Collection of French and worldwide classics.

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end Aug 17th, 2017

Ends Thursday, August 17th, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Historic and significant SYNTHETIC QUARTZ specimen (ex Motorola Laboratories)
2. A beautiful and showy ANGLESITE on matrix from Broken Hill, Australia
3. Fine quality, deep emerald green crystallized BROCHANTITE from the Shattuck Mine in Bisbee, Arizona
4. A classic VANADINITE specimen from the Old Yuma Mine in Arizona that was PICTURED in the MINERALOGICAL RECORD!
5. An attractive and rare gemmy "Star of David" twinned SPINEL crystal from Myanmar (Burma)
6. Rarities include, SUSSEXITE, PARAVAUXITE, ZANAZZIITE, CANAVESITE, and GOLDMANITE

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends August 10th, 2017

Ends August 10th, 2017 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

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end Aug 10th, 2017

Ends Thursday, August 10th, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Beautiful and unique PURPLE QUARTZ / CHALCEDONY from a recent find in Indonesia
2. Sharp and GEM QUALITY classic yellow color SANIDINE FELDSPAR crystal from Madagascar
3. Fine bright red color REALGAR crystals on matrix from the Royal Reward Mine in Washington from the Francesco Bedogné Collection
4. A rarely seen SMOKY QUARTZ GWINDEL from the Hunza Valley in Pakistan
5. Gorgeous and rarely seen gemmy TRAPICHE HABIT RUBY crystal from Myanmar (Burma)
6. Classic and RARE pseudomorph of BAYLDONITE after MIMETITE from Tsumeb from the Kay Robertson Collection
7. A lovely, multicolor, gemmy, phantom FLUORITE specimen from a new find in Baluchistan, Pakistan

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION - end Aug 10th, 2017

Ends Thursday, August 10th, 2017
at 6:30 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Rare & superb large BETEKHTINITE
2. Fine gem bi-colored TOURMALINE (1980s)
3. Specimens from the Paul Zerfass Collection
4. Excellent Tsumeb LEADHILLITE
5. Classic and rarities from the Kay Robertson Collection
6. Rare large matrix Herkimer QUARTZ "diamond

SPECIAL MINERAL AUCTION - THE COLLECTION OF SENATOR, Dr. MIGUEL ROMERO - Ends * TUESDAY * August 8, 2017

Ends ** TUESDAY ** August 8th, 2017
at 6:30 PM (Central Time Zone)

We are wrapping up the summer's special themed auctions with a bang! For the last three months we've been putting together singular auctions on Tuesday nights that focused either on a particular collector, locality or group of minerals. We are happy to announce that the final auction of the special sets will be from the world-famous mineral collection of Senator and PhD Chemist, Miguel Romero Sanchez. With the great success of the first Romero auction, we decided to put together another auction a few months ago and save it for the final week. Enjoy!

Dr. Romero assembled the finest collection of Mexican minerals, and minerals in general, ever put together in Mexico.

After his death, and ten years on loan and display to the University of Arizona for exhibition, the core collection was sold to The Arkenstone by the Romero family in 2007. Many other specimens, including a systematic suite, and lesser pieces, were donated to the Autonomous University of Mexico.

In closing out his private museum and offices in his home of Tehuacan, Mexico, it was found only recently that a shipping container of mixed specimens, both worldwide and Mexican in origin had been put together for possible donation or sale but never sent to its destination. We are pleased now to present much of that surprise trove to you, including rare historic and Mexican specimens, in our auctions as a special offering

PLEASE NOTE: This auction closes on a TUESDAY night, not our normal Thursday schedule, and we'll send out a reminder / announcement before it closes to you don't miss out.

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends August 3rd, 2017

Ends Thursday, August 3rd, 2017 at 7:00 PM (Central Time Zone)

ATTENTION! We are pleased to announce that we have purchased a notable collection / supply from a retiring gem dealer of beautiful mixed stones, cabochons and jewelry which we will be offering at liquidation prices!!

Keep watching every week for a great mix and new variety of good quality gemstones to appear over the following months. Reserve prices will typically be $100 and $50 on the better material every other week, with $25 and $10 reserves on alternating weeks.
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end Aug 3rd, 2017

Ends Thursday, August 3rd, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. A rare yellow colored BRUCITE specimen from a new discovery in Pakistan
2. Beautiful, sharp, lustrous, fine quality, brilliant orange colored ORPIMENT on matrix from Nevada
3. Rich pink, gemmy, "barrel"-shaped, FLUORAPATITE crystals on MUSCOVITe from Pakistan from the collection of Francesco Bedogné
4. A fine quality, highly lustrous, metallic crystal of silvery CARROLLITE on CALCITE from DR Congo
6. Beautifully crystallized, GEM quality, razor sharp, well-formed SMOKY QUARTZ from Brazil from the Paul Zerfass Collection
7. Rarities include LEITITE with LUDLOCKITE, BARRERITE, CARLETONITE, GUDMUNDITE, Co-bearing PICKERINGITE, VILLAMANINITE, HAWIWEEITE and KARELIANITE

FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end Thursday, Aug 3, 2017 (set 1 of 2)

Ends Thursday, August 3, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories that you cannot as easily find in today's market as in the past. This week will highlight some rare Arizona locality pieces and large Brazilian specimens recently obtained in collection purchases.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week’s include:
1. Fine TOURMALINES
2. Rarities and classics from the Kay Robertson Collection
3. Large CALCITES from the Elmwood Mine, France and China
4. Specimens from the Paul Zerfass and Dr. Phillips Collections
5. Fine ARIZONA specimens from the Bruce Murphy Collection
6 Classic old Cavradi HEMATITE, RUTILE & QUARTZ

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends July 27th, 2017

Ends July 27th, 2017 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

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end July 27th, 2017

Ends Thursday, July 27th, 2017
at 6:45 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. An attractive, gemmy, etched / crystallized soft pink color MORGANITE BERYL crystal from Brazil
2. A fine quality crystallized CINNABAR on DOLOMITE from the Wanshan Mine, China from the Francesco Bedogné Collection
3. Lovely green, rare crystallized LUDLAMITE on SIDERITE from the Huanuni Mine, in Pakistan
4. A wonderful, large FERBERITE with FLUORAPATITE from Panasqueira, Portugal from the Paul Zerfass Collection
6. A cool DIOPTASE in CHRYSOCOLLA from the San Manuel Mine in Arizona from the Kay Robertson Collection
7. LARGE CABINET crystallized / crystalline COPPER specimen from the Morenci Mine in Arizona

FINE MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY July 27, 2017 (set 1 of 2)

Ends Thursday, July 27, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD MINERAL COLLECTIONS! Most of the specimens here are from old stashes and purchased dealer inventories that you cannot as easily find in today's market as in the past. This week will highlight some rare Arizona locality pieces and large Brazilian specimens recently obtained in collection purchases.

We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection of 10,000 specimens, filled with European treasures and old classics accumulated since she started collecting in 1928 (see our website for more information: http://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world)!


Some of the highlights from this week’s include:
1. Rare and fine Illinois FLUORITE from the Ross Lillie Collection
2. Many classic and rarities from the Kay Robertson Collection
3. Large, rare Chinese FLUORITE from a 2016 find
4. Fine ARIZONA specimens from the Bruce Murphy Collection
5. Specimens from the Paul Zerfass Collection
6. A stunning, sharp ALLANITE crystal from Russia

SPECIAL MINERAL AUCTION - $499 RESERVE LIQUIDATION SPECIMENS - ends * TUESDAY * July 25, 2017

Ends TUESDAY July 25, 2017
at 6:30 PM (Central Time Zone)

Continuing with our special themed auctions through the summer we've put together a selection of higher-end specimens all starting with $499 reserve bids. Every piece in this auction is valued at over $1,000 in the inventory (some are valued at $2,000+). There are plenty of classic and contemporary, fine quality, attractive miniature and cabinet display pieces from around the world. A large percentage of the specimens come with FREE custom lucite display bases as well.

PLEASE NOTE: Due to the larger size and weight of some of the pieces in this auction (their bases included), there will be additional shipping charges. Please keep this in mind when bidding. If you have any questions, please ask before placing your bids. Thank you!

Lastly, This auction closes on a TUESDAY night, not our normal Thursday schedule, and we'll send out a reminder / announcement before it closes to you don't miss out.

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends July 20th, 2017

Ends Thursday, July 20th, 2017 at 7:00 PM (Central Time Zone)

ATTENTION! We are pleased to announce that we have purchased a notable collection / supply from a retiring gem dealer of beautiful mixed stones, cabochons and jewelry which we will be offering at liquidation prices!!

Keep watching every week for a great mix and new variety of good quality gemstones to appear over the following months. Reserve prices will typically be $100 and $50 on the better material every other week, with $25 and $10 reserves on alternating weeks.
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

SPECIAL MINERAL AUCTION - THE COLLECTION of PAUL ZERFASS - ends Thursday July 20th, 2017

Ends Thursday, July 20th, 2017
at 6:45 PM (Central Time Zone)

Continuing with our special themed auctions through the summer we are thrilled to announce the acquisition of the worldwide collection of well-known and beloved French field collector and mineral enthusiast, Paul Zerfass.

Mr. Zerfass' mineral collection is one of great love, effort and joy dating back nearly 50 years to when we has 17 years old (but we was picking up rocks from the age of five). He amassed a fine worldwide suite of minerals, many of which came directly from his efforts as a field collector. He has been featured on the cover of the May / June 2017 issue of the French mineral magazine, Le Règne Minéral, which showed a detailed spread of his collection and a wonderful biography of his life. We have a .pdf file with the article for anybody who wants to read it (though it's mostly in French), so just drop us a line and we'll send it along.

You will see many attractive historic, classic and contemporary specimens from Paul's collection featured here, and we've taken this opportunity to familiarize everybody with this introductory 30 piece auction. Look for more of his specimens mixed into the auctions for the next several months.

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION - end July 20th, 2017

Ends Thursday, July 20th, 2017
at 6:30 PM (Central Time Zone)

This week's auction is filled with new material we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. A fine quality and aesthetic intense blue, highly lustrous AZURITE from Touissit, Morocco
2. Selected Mexican and worldwide specimens from the collection of Dr. Miguel Romero!
3. Beautiful large clove purple colored crystals of AXINITE-(Fe) with Adularia from Pakistan
4. Rare and colorful "RAINBOW" ANDRADITE Garnet from Japan
5. A rarely seen specimen of the new and unusual "BLOOD VESSEL" OPAL from Mexico
6. Captivating blue CUPRIAN SMITHSONITE from the Hilarion Mine, in Lavrion, Greece
7. Rarities include GREIFENSTEINITE, GALENOBISMUTITE, ZINCWOODWARDITE (from the type locality), NAUJAKASITE and ALUMOTUNGSITE (aluminium-rich variety of Hydrokenoelsmoreite)

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end July 13th, 2017

Ends Thursday, July 13th, 2017
at 7:00 PM (Central Time Zone)

This week's auction is filled with plenty of new discoveries we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. You'll even find a few fossils, carving and gemstones mixed in every now and then. Look for pieces mixed in from various collections we've obtained including Willard Wulff, Kay Robertson, Francesco Bedogné, and Paul Zerfass, along with 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 include:
1. Doubly-terminated GEMMY pink and green TOURMALINE from the Himalaya Mine in California
2. A fine quality, gemmy sapphire-blue color crystal of AFGHANITE aesthetically sitting on matrix
3. Classic "rose" of rich blue AZURITE from the famous Czar Mine in Bisbee, Arizona
4. A GEM quality compressed purple cubic crystal of FLUORITE from the Llamas Quarry in Spain
5. Lovely semi-spherical green PREHNITE sitting on QUARTZ from the Hongquizhen Quarry, China
6. Beautiful sharp cuboctahedral light green color FLUORITE crystals on SPHALERITE from Naica, Mexico
7. A very cool, historic specimen of SYNTHETIC QUARTZ from Motorola Laboratories

$10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends July 13th, 2017

Ends July 13th, 2017 at 7:00 PM (Central Time)

We're switching things up this week with a full 30 piece auction of $10 reserve gems . A great mix of stones this week with rarities, well-known popular gems and even a few oddities to add to your collection!
Unique and attractive items as always - check them out !!
Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

SPECIAL CONSIGNMENT MINERAL COLLECTION AUCTIONS - end THURSDAY July 13, 2017

SPECIAL CONSIGNMENT MINERAL COLLECTION AUCTIONS - end THURSDAY July 13, 2017 Ends Thursday, July 13, 2017
at 6:30 PM (Central Time Zone)

We start off with a special presentation of minerals, including many of higher value and a number of gorgeous and fine QUARTZ specimens, all from several private collections we have exchanged items with recently! This week we ramp down a number of our existing flows of auction minerals from the numerous old collections we have bought and stockpiled, in order to premiere teasers for all the diverse worldwide material purchased from the Dr Francesco Bedogne Collection; and the important French collection of well-known field-collector Paul Zerfass. Stay tuned !


SPECIAL MINERAL AUCTION - THE COLLECTION of FRANCESCO BEDOGNÉ - ends Thursday July 13, 2017

Ends Thursday July 13, 2017
at 6:45 PM (Central Time Zone)

Continuing with our special themed auctions through the summer we are thrilled to announce the acquisition of the worldwide collection of Francesco Bedogné of Sondrio, Italy (1942-2012).

Dr. Bedogne was a beloved and famous mineral collector, field collector and author. He specialized in collecting and writing about minerals of the Italian Alps, contributing dozens of articles and many books including the minerals of famous Alpine deposits such as Val Chiavenna, Val Bregaglia, Val Masino, Val Codera and of course the famous Val Malenco for which he was best known (see the Mineralogical Record article in Vol. 3, No. 3 - May / June 1972; pg. 120-123). Bedogné was the founder of the Valtellinese Mineralogical Institute as well. A book featuring some of his finest specimens entitled "Segrete Geometrie" was published in 2015.

Bedogné's worldwide collection features many attractive historic, classic and contemporary specimens, and we've taken this opportunity to familiarize everybody with this introductory 30 piece auction. Look for more of Francesco's specimen mixed into the auctions for the next several months.