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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

SPECIAL MINERAL AUCTION - RARITIES and MICRO MINERALS - Ends * TUESDAY * June 27, 2017

Specimens Available: 45

Ends ** TUESDAY ** June 27th, 2017
at 6:30 PM (Central Time Zone)

For the next few months, we're going to be listing special themed auctions featuring specimens from a specific locality, collection or a themed auction. We're going to do at least one special auction per month during the summer!

The current theme auction features two pages loaded with rare minerals and micro species. We've assembled a great mix of worldwide minerals with an emphasis on rarity and interesting micro crystallization. We put in extra effort to take a lot of micro photos for everything so all the little details can be seen. Many of the specimens in this lot are the only piece of a particular species that we have to offer. Check out all the minerals we have from the TYPE LOCALITY such as Svenekite, Ludlockite, Colusite, Natrochalcite, Nissonite, Rosenhahnite, Painite, Vauxite and a specimen with Frankamenite, Tokkoite and Davanite (all THREE TOGETHER from the TYPE LOCALITY!).

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.

FINE MINERAL SPECIMEN LIQUIDATION AUCTIONS - end THURSDAY June 29, 2017 (set 1 of 2)

Specimens Available: 52

Ends Thursday, June 29, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD 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 recently obtained in a collection purchase, and classics from the Kay Robertson Collection.

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. PSEUDOMORPHS suite from the Ed Swoboda Collection
2. Large crystallized Michigan COPPER
3. Fine ARIZONA specimens from the Bruce Murphy Collection
4. Rarities and classics from the Kay Robertson Collection
5. Dramatic,large JAPAN TWINNED QUARTZ from Peru
6. Early 1980's Hotazel Mine RHODOCHROSITE of rare style!
7. Classic MILARITE thumbnail from Brazil

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end June 29th, 2017

Specimens Available: 45

Ends Thursday, June 29th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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. One of the NEW and EXCITING PURPLE QUARTZ / CHALCEDONY / AGATE specimens from Indonesia
2. A showy and aesthetic matrix specimen of gemmy golden BARITE from the Meikle Mine in Nevada
3. Rare and unusual BIG specimen of STILBITE on MICA SCHIST from the Thomaston Dam railroad cut in Connecticut
4. Classic old specimen of beautiful blue-green CHALCOPHYLLITE on matrix from Cornwall, England
5. A superb quality matrix display specimen of AZURITE from Tsumeb
6. Wonderful "cogwheel"-shaped groups of metallic BOURNONITE on matrix from Bolivia
7. An interesting and unusual pseudomorph / replacement of QUARTZ after TOURMALINE from Brazil
8. A rarely seen FLUORESCENT BERYL specimen on matrix from Pingwu, China

$10 RESERVE GEMSTONE AUCTION - Ends June 29th, 2017

Specimens Available: 30

Ends June 29th, 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


Closed Auctions

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end June 22nd, 2017

Ends Thursday, June 22nd, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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. Worldwide classics from the Kay Robertson collection!
2. A showy and aesthetic matrix specimen of gemmy AXINITE-(Fe) from Pakistan
3. A SUPERB, LARGE and HISTORIC piece of SYNTHETIC QUARTZ from Bell Telephone Laboratories in New Jersey
4. Excellent rich green gemmy ANDRADITE (DEMANTOID) GARNET crystals on matrix from Madagascar
5. GEMMY twinned crystals of golden DOLOMITE with GEM MAGNESITE from Brumado, Brazil
6. An unusual and attractive piece of crystallized GOETHITE from Colorado forming and interesting "cast"
7. Rarities include BELYANKINITE, MCNEARITE, SCHMIEDERITE, APACHITE with RUIZITE, and PINAKIOLITE!

SPECIAL $100 RESERVE GEMSTONE AUCTION - Ends June 22nd, 2017

Ends Thursday, June 22nd, 2017 at 7:00 PM (Central Time Zone)

ATTENTION! In keeping with the special themed auctions that we're running over the summer, we have decided to apply the same theme to our gem auctions to give them a little extra flair. This week we've posted a special 15-stone set of $100 reserve gems!! We have some really interesting offering this week including some cool Fossil Cabochons along with some rarities like Dioptase and Sanidine along with your favorites such as Rubellite Tourmaline, Sapphire, Topaz and more!

Keep watching every week for a great mix and new variety of good quality gemstones to appear over the next year. 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 SPECIMEN LIQUIDATION AUCTIONS - end THURSDAY June 22, 2017 (set 1 of 2)

Ends Thursday, June 22, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD 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 recently obtained in a collection purchase, and classics from the Kay Robertson Collection.

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 unusual Ross Lillie Collection ILLINOIS FLUORITE
2. Classic and rarities from the Kay Robertson Collection
including a rare botryoidal MOGOK RUBY
3. Large classic Blanchard Mine FLUORITE plate
4. Superb French pink FLUORITE
5. Vibrant COBALTOAN CALCITE and YELLOW SMITHSONITE from CHINA finds!
6. Gem KUNZITE and gemmy TANZANITE xls
7. Matrix RED BERYL Thumbnail specimen
8. Fine large CALCITES from the Art Soregaroli Collection

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends June 15th, 2017

Ends June 15th, 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 June 15th, 2017

Ends Thursday, June 15th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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. WATER CLEAR "ice cube" habit colorless FLUORITE crystals on PYRRHOTITE from Dal'negorsk, Russia
2. BIG and SHOWY multi-color piece of PETRIFIED WOOD from the Petrified Forest in Arizona
3. A cool partial pseudomorph / replacement of QUARTZ after TOURMALINE from Brazil
4. Great quality rich blue LAZULITE crystals on matrix from Rapid Creek, Canada
5. An OLD TIME TOURMALINE from the Himalaya Mine dating back to the days of George English in the early 20th century!
6. Fine quality, rich crystal group of the ultra-rare sulfosalt FRANCKEITE with ZINKENITE from Bolivia

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY June 15, 2017 (set 1 of 2)

Ends Thursday, June 15, 2017
at 6:30 PM (Central Time Zone)

FEATURING MANY SPECIMENS FROM OLD 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 recently obtained in a collection purchase. We also feature more choice pieces, including many of $1000 value and up, from the old Obodda material, and the Kay Robertson Collection.

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 superb Ross Lillie Collection FLUORITE & QUARTZ
2. Classic and rarities from the Kay Robertson Collection
including a
Fine Arkansas "turkey fat" SMITHSONITE
3. Guanajuato ACANTHITE after PYRARGYRITE 4. GEM CRYSTALS 5. Vibrant COBALTOAN CALCITE and YELLOW SMITHSONITE from CHINA finds!
6. Rare Argentina gem TOPAZ
7. Large old rare BOURNONITE from France
8. Fine specimens from a new ARIZONA collection

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends June 8th, 2017

Ends Thursday, June 8th, 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 next year. 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 June 8th, 2017

Ends Thursday, June 8th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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 association of cyclic-twinned CASSITERITE with TOURMALINE from the Viloco Mine in Bolivia
2. Beautiful, classic, sharp, gemmy, lustrous AMETHYST "FLOWER" from Ametista do Sul, Rio Grande de Sul, Brazil.
3. A lovely DOUBLY-TERMINATED DIOPTASE with PLANCHEITE from the Christoph Mine, Namibia
4. Wonderful rich green Chromium / Vanadium " bearing TOURMALINE from Myanmar (Burma)
5. Rich emerald green, sharp, lustrous "sword"-shaped crystals of Vivianite from the Tomokoni Mine in Bolivia
6. An OLD classic NAGYAGITE from the TYPE LOCALITY in Romania (formerly Hungary)

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY June 8, 2017 (set 1 of 2)

Ends Thursday, June 1, 2017
at 6:30 PM (Central Time Zone)

A great mix of specimens in the auction this week featuring contemporary treasures, gem crystals, native elements, attractive display specimens, sought after classic and more! Many of the specimens are mostly from old stashes and purchased dealer inventories that you cannot even access easily at shows anymore.

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 competition quality Mexico STEPHANITE w/ FLUORITE
2. Fine specimens from an ARIZONA collection
3. Selection of TOURMALINES
4. Rarities and classics from the Kay Robertson Collection
5. Large Tsumeb AZURITE and MALACHITE
6. Rare large Colorado KRENNERITE
7. Superb Ross Lillie Collection Illinois CALCITE, GALENA & FLUORITE
8. Old Russian EMERALD
9. Gemmy red Madagascar TOURMALINE
10. Rare Ghana macle twin DIAMOND

SPECIAL MINERAL AUCTION - THE COLLECTION OF SENATOR, Dr. MIGUEL ROMERO - Ends * TUESDAY * June 6, 2017

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

For the next few months, we're going to be listing special themed auctions featuring specimens from a specific locality, collection, etc. We're going to do at least one special auction per month during the summer! The current theme auction features two full pages of specimens from the collection of the world-famous mineral collector, Senator and PhD Chemist, Miguel Romero Sanchez.

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.

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends June 1st, 2017

NEW Mixed $25 and $10 Reserve GEM AUCTIONS Starting July 2013 Ends June 1st, 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 June 1st, 2017

Ends Thursday, June 1st, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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 excellent and rarely seen BRIGHT ORANGE EOSPHORITE on ALBITE from Pakistan
2. A fantastic big show golden BARITE specimen from the Meikle Mine in Nevada with a nearly 4-inch crystal.
3. Superb rich green CUPRIAN SMITHSONITE from the 79 Mine in Arizona
4. Multicolor doubly-terminated "floater" TOURMALINE crystal from Stak Nala, Pakistan
5. An ultra-rare specimen of PAINITE from the Type Locality in Myanmar (Burma)
6. A really cool PYROMORPHITE in the form of a "HALO" on matrix from the Daoping Mine in China

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY June 1, 2017 (set 1 of 2)

Ends Thursday, June 1, 2017
at 6:30 PM (Central Time Zone)

Another great auction this week loaded with plenty of goodies! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more, mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore.

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 Classics and rarities from the Kay Robertson Collection
2 Rare Nevada QUARTZ combination and a large TOPAZ
3 Rich pink TOURMALINE slice from Madagascar
4. Unusual large "Angle plated" QUARTZ
5 Superb Erongo AQUAMARINE, SIDERITE & FELDSPAR combination
6 Outstanding India APOPHYLLITE and STILBITE
7. Striking GEM AQUAMARINE from Pakistan
8. a rare fine CALIFORNIA MAGNETITE combination

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends May 25th, 2017

Ends Thursday, May 25th, 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 next year. 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

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY MAY 25, 2017 (set 1 of 2)

Ends Thursday, May 25, 2017
at 6:30 PM (Central Time Zone)

Another great auction this week loaded with plenty of goodies! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more, mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore.

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. A Superb Mexico wire SILVER
2. Classics and rarities from the Kay Robertson Collection
3. Old, rare Michigan APOPHYLLITE on ANALCIME
4. Nice selection of TOPAZ, TOURMALINE and EUCLASE crystals
5. Rare Tsumeb AZURITE on SMITHSONITE
6. Large and rare Alaska BARRERITE combination
7. Impressive large Mexico SMITHSONITE from Santa Eulalia
8. Rare old large Utah MARTITE and MAGNETITE combination
9. Specimens from the Dr. Barratt Phillips Collection
10. Superb large Illinois FLUORITE combination from the Ross Lillie Collection

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end May 25th, 2017

Ends Thursday, May 25th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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 rich electric blue AZURITE crystals from Morocco from the collection of Dr. Miguel Romero
2. Fine quality, translucent, greenish-brown SIDERITE with clay inclusions from Machacamarca, Bolivia
3. Superb WATER CLEAR FLUORITE crystals on matrix from the Llamas Quarry, Spain
4. Wonderful, sharp, isolated, aesthetic cubic PYRITE on matrix from the Shangbao Mine in China
5. A cool fossil of BELEMNITE replaced by FLINT sitting on a ball of PYRITE from Russia
6. Rarities include PSEUDOBOLEITE, BRIANYOUNGITE, LUDWIGITE, CARPATHITE, KOSNARITE, BOKITE, ATELESTITE and DENNINGITE

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends May 18th, 2017

Ends May 8th, 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 May 18th, 2017

Ends Thursday, May 18th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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 hard to find GOLD specimen on QUARTZ from Timmins area, Ontario, Canada
2. Lovely matrix specimen of the rare phosphate SCHOLZITE from Australia
3. A piece of the unique, new and exciting purple QUARTZ ("Chalcedony" / "Agate") from Indonesia
4. Wonderful pink MANGANOAN CALCITE from a NEW FIND in Bulgaria
5. A near "floater" specimen of fine quality "Faden" QUARTZ from Pakistan
6. A lovely "heart"-shaped twinned green CHRYSOBERYL from Madagascar
7. Classic, historic and rare display piece of CRYOLITE from the Type Locality in Greenland

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY MAY 18, 2017 (set 1 of 2)

Ends Thursday, May 18, 2017
at 6:30 PM (Central Time Zone)

We ramped up the auctions with some important, beautiful "spikers" including OLD CLASSIC MINERALS FROM EUROPE, RARE SPECIES and GEM CRYSTALS! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more , mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore.

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. Superb gem KUNZITE
2. Rarities and classics from the Kay Robertson Collection
3. Classic MESOLITE and APOPHYLLITE
4. Exceptional Los Lamentos WULFENITE
5. Fine Ray Mine CHRYSOCOLLA pseudomorph and spinel-twinned COPPER
6. Excellent TOURMALINES
7. Large Peru PYRITE

SPECIAL TSUMEB MINERAL AUCTION - Ends * TUESDAY * May 16, 2017

Ends ** TUESDAY ** May 16th, 2017
at 6:30 PM (Central Time Zone)

For the next few months, we're going to be listing special themed auctions featuring specimens from a specific locality, collection, etc. We're going to do at least one special auction per month during the summer! This week's theme is minerals of the world's most famous locality, TSUMEB! We have a page of well-known classics, along with display specimens and even a few rarities thrown in.

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.

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY MAY 11, 2017 (set 1 of 2)

Ends Thursday, May 11, 2017
at 6:30 PM (Central Time Zone)

We ramped up the auctions this week with some important, beautiful "spikers" including OLD CLASSIC MINERALS FROM EUROPE, RARE SPECIES and GEM CRYSTALS! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more , mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore.

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 selection of TOURMALINES
2. HUGE GARNET from Australia.
3. Michigan COPPER with SILVER. 4. Rare large old Nevada WULFENITE.
5. Butte CHALCOCITE after COVELLITE.
6. Rare old Illinois FLUORITE & GALENA w/ hydrocarbons
7. Outstanding old COBALTITE
8. Large and excellent Chinese FLUORITE
9. Rare French TORBERNITE

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends May 11th, 2017

Ends Thursday, May 11th, 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 next year. 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 May 11th, 2017

Ends Thursday, May 11th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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, old time rich purple AMETHYST crystals from Piedra Parada (formerly Las Vigas), Mexico
2. A unique orange colored FLUORITE from Tongbai, China
3. Large fine quality, sharp, lustrous prismatic group of AEGIRINE crystals of Malawi
4. Showy and fine quality pseudomorphs of MALACHITE after AZURITE from Ajo, Arizona
5. A good quality GEM/gemmy SMITHSONITE on GALENA from Broken Hill, Australia
6. A GREAT mix of RARITIES this week including GORDAITE, CHERNYKITE and POTOSIITE / FRANCKEITE – plus a piece of CANNIZZARITE, a piece of ALMEIDAITE, a piece of CHERNYKHITE and a piece of GATUMBAITE from their respective Type Localities

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends May 4th, 2017

Ends May 4th, 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

MINERAL COLLECTION LIQUIDATION AUCTIONS - end THURSDAY MAY 4, 2017 (set 1 of 2)

Ends Thursday, May 4, 2017
at 6:30 PM (Central Time Zone)

We ramped up the auctions this week with some important, beautiful "spikers" including OLD CLASSIC MINERALS FROM EUROPE, RARE SPECIES and GEM CRYSTALS! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more , mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore.

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 Laos AZURITE & MALACHITE
2. Excellent selection of classics and rarities from the Kay Robertson Collection including rare old Type Locality pieces
3. Tsumeb CUPRIAN SMITHSONITE with large crystals
4. Ross Lillie Collection ILLINOIS pieces
5. Outstanding , competition quality Mexico POLYBASITE

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end May 4th, 2017

Ends Thursday, May 4th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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. Great association specimen of DIOPTASE with PLANCHEITE, SHATTUCKITE and WILLEMITE from Republic of Congo
2. A RARELY seen specimen of SYNTHETIC QUARTZ grown in Bell Laboratories over 50 years ago!
3. A cool specimen of TOURMALINE (partially replaced by QUARTZ) with LEPIDOLITE from Brazil
4. Wonderful cabinet sized display specimen of classic golden BARITE from the Meikle Mine in Nevada
5. A showy and aesthetic matrix TOURMALINE specimen with ALBITE and QUARTZ from the personal collection of Herb Obodda
6. Big cabinet display specimen of green FLUORITE on PYRITE from Huanzala, Peru

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

Ends Thursday, April 27th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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 "Trapiche" habit RUBY crystal from Myanmar (Burma)
2. Large "Jackstraw" bluish colored ELPIDITE crystals from Mont Saint-Hilaire, Canada
3. A showy and eye-catching blue-green SMITHSONITE from the Refugio Mine, Choix, Mexico
4. Beautiful cabinet display specimen of gemmy multicolor phantom FLUORITE from the Annabel Lee Mine in souther Illinois
5. Wonderful showy rich blue-green colored attractive WAVELLITE from Arkansas
6. Rarities include LUDLOCKITE, GUDMUNDITE, KLEBELSBERGITE, HODRUSITE, COLUSITE and a CHILDRENITE (from the Type Locality)

FINE MINERALS and MINERAL COLLECTION LIQUIDATION AUCTION - end THURSDAY APRIL 27, 2017 (set 1 of 2)

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

We ramped up the auctions this week with some important, beautiful "spikers" including OLD CLASSIC MINERALS FROM EUROPE, RARE SPECIES and GEM CRYSTALS! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more , mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore. We are honored to announce the purchase of several large collections including the fantastic Kay Robertson collection, filled with European treasures and old classics accumulated since she started collecting in 1928. Look for these to start into auctions shortly!


Some of the highlights from this week’s include:
1 Excellent TSUMEB rarities.
2. Unusual "Angle plated" QUARTZ.
3. Significant selection of classic and rarities from the Kay Robertson Collection including a RARE old Tsumeb PYROMORPHITE and old Type Locality KRENNERITE.
4. Fine large old English BARITE.
5. Superb and rare Republic of Congo DIOPTASE.
6. LARGE, RICH, old PRIBRAM SILVER.

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends April 27th, 2017

Ends Thursday, April 27th, 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 next year. 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

$25 and $10 RESERVE GEMSTONE CONSIGNMENT AUCTION - Ends April 20th, 2017

Ends April 20th, 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 April 20th, 2017

Ends Thursday, April 20th, 2017
at 6:45 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. Of course we have plenty of pieces from the famous and historic Willard Wulff collection, along with dealers' inventories and other private collections that we're liquidating. 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 AMETHYST scepter on white QUARTZ from Hopkinton, Rhode Island
2. A showy specimen of STIBNITE from the Wuling Mine in China
3. Hard to find, large, historic CALCITE and MARCASITE from the Bautsch Mine in Galena, Illinois
4. A cool piece of AMBER with insect inclusions and a SPIDER(!) from the Dominican Republic
5. Wonderful showy cabinet sized BARITE from the Meikle Mine in Nevada
6. Rarely seen old time RHODOCHROSITE from the Moose Mine in Gilpin County, Colorado

FINE MINERALS and MINERAL COLLECTION LIQUIDATION AUCTION - end THURSDAY APRIL 20, 2017 (set 1 of 2)

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

We ramped up the auctions this week with some important, beautiful "spikers" including OLD CLASSIC MINERALS FROM EUROPE, RARE SPECIES and GEM CRYSTALS ! This auction set, as do all, features classic and rare minerals from contemporary and historic worldwide localities along with gem crystals, native elements and more , mostly from old stashes and old dealer inventories that you cannot even access easily at shows anymore. We are honored to announce the purchase of several large collections including the remainder of the Dr. Miguel Romero collection and the fantastic Kay Robertson collection, filled with European treasures and old classics accumulated since she started collecting in 1928. Look for these to start into auctions shortly!


Some of the highlights from this week’s include:
1 Rare large Brazil MONTEBRASITE twin
2 Classics and old rarities from the Kay Robertson Collection
3 Early 1900s Joplin BARITE and CALCITE TWIN from the Feist Collection
4. Rare MEXICO specimens
5 Outstanding large Pakistan EPIDOTE
6. Old classics from the Paterson (NJ) Museum
7. RARE gem Cornwall PYROMORPHITES, dated 1870