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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 - $499 RESERVE LIQUIDATION SPECIMENS - ends TUESDAY, February 19, 2019

Specimens Available: 30

Ends Thursday, February 19, 2019
at 6:45 PM (Central Time Zone)

Continuing with our special themed auctions we've put together a selection of higher-end specimens all starting with $499 reserve bids. NEARLY every piece in this auction is valued at $1,500 MININUM in the inventory (several are valued at $2,000-$3,000+). There are plenty of classic and contemporary, fine quality, attractive display pieces from around the world.

PLEASE NOTE: Due to the larger size and weight of some of the pieces in this auction, 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!

TUCSON SHOW FINE MINERAL LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday February 21st, 2019

Specimens Available: 45

Ends Thursday, February 21st, 2019
at 6:45 PM (Central Time Zone)


It's the final week of the Tucson Show, and we have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including the newly acquired collection of David Burgess along with Brian Lloyd, Rolando Gioia, Charlie Key, Dr. Stephen Smale, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. Classic emerald green DIOPTASE from Tsumeb
2. Beautifully crystallized GOLD specimen from the Piolho claim in Brazil
3. Rare "Star of David" twinned SPINEL crystal from Myanmar
4. Fine cabinet sized BORNITE with QUARTZ and PYRITE from Butte, Montana
5. Attractive doubly-terminated "floater" group of TOURMALINE from Brazil (ex Rolando Gioia Collection)
6. Old classic LANGITE specimen from Slovakia
7. Cool GEMMY green TALC from Vermont
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

SPECIAL $50 RESERVE GEMSTONE AUCTION - Ends February 21st, 2019

Specimens Available: 14

Ends Thursday, February 21st, 2019 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


Closed Auctions

$10 RESERVE GEMSTONE AUCTION - Ends February 14th, 2019

Ends February 14th, 2019 at 7:00 PM (Central Time)

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

TUCSON SHOW FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday February 14th, 2019

Ends Thursday, February 14th, 2019
at 6:45 PM (Central Time Zone)


We're in Tucson, and the auctions will keep rolling. We have a great selection of rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including the newly acquired collection of David Burgess along with Brian Lloyd, Rolando Gioia, Charlie Key, Dr. Stephen Smale, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. RARE "Trapiche" habit RUBY crystal from Myanmar
2. Newly mined unusual "windswept" CHALCEDONY from Greece (very similar to Cornwall)
3. Fantastic GLOWING yellow STURMANITE on matrix from South Africa (ex David Burgess Collection)
4. HIGHLY AESTHETIC FLUORITE with HUBNERITE on QUARTZ from the Sweet Home Mine
5. Wonderful GEMMY green FLUORITE specimen from China (ex Dr. Stephen Smale Collection)
6. A cool SPESSARTINE GARNET on matrix from China with an eye-catching DOUBLY-TERMINATED SMOKY QUARTZ
7. Rarities include POLYDYMITE, LAZURITE pseudomorph after PHLOGOPITE and KERMESITE
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

SPECIAL $100 RESERVE GEMSTONE AUCTION - Ends February 7th, 2019

Ends Thursday, February 7th, 2019 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) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday February 7th, 2019

Ends Thursday, February 7th, 2019
at 6:45 PM (Central Time Zone)


We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including the newly acquired collection of David Burgess along with Brian Lloyd, Rolando Gioia, Charlie Key, Dr. Stephen Smale, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. Classic, old APATITE specimen from the Swiss Alps
2. Fine quality AZURITE with MALACHITE from the Milpillas Mine, Mexico
3. Wonderful, rare, electric blue CALEDONITE from the Reward Mine, California
4. Glowing electric red REALGAR on CALCITE from China
5. Beautiful, classic reticulated CERUSSITE specimen from Tsumeb
6. Gorgeous golden AMBER from Dominican Republic with MULTIPLE INSECT INCLUSIONS
7. Rarities include species like KINOITE and DANALITE
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

PRE-TUCSON SPECIAL MINERAL COLLECTION LIQUIDATION AUCTION:
featuring OLD CLASSICS - ends Thursday Feb 7, 2019

ends Thursday Feb 7, 2019
at 6:30 PM (Central Time Zone)

This auction features a large group of minerals spanning over 100 years of history, mostly pulled from the collections of lifelong mineral collectors Kay Robertson and David Burgess. These are pieces nobody has seen for sale yet, offered to auction for the first time! Look for superb old classics ! Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Rare crystallized GOLDS, including an Arizona piece
2. RHODOCHROSITES from the W.S. Logan Collection
3. Large Elmwood CALCITE & an old classic CALCITE from Scotland
4. Stunning rare KAOLINITE replacing AGATE geode
5. Rare and unusual DIAMONDS from the Burgess Collection
6. Large Swiss FADEN QUARTZ from the Eric Asselborn Collection
7. FLUORESCENTS

$25 and $10 RESERVE GEMSTONE AUCTION - Ends January 31st, 2019

Ends January 31st, 2019 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) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday January 31st, 2019

Ends Thursday, January 31st, 2019
at 6:45 PM (Central Time Zone)


We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including the newly acquired collection of David Burgess along with Brian Lloyd, Rolando Gioia, Charlie Key, Dr. Stephen Smale, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. Doubly-terminated GEM AMETHYST scepter from Washington
2. Rarely seen matrix specimen of AQUAMARINE from the McGinnis Mine in New Hampshire
3. A really cool old SYNTHETIC QUARTZ from Motorola Labs in Pennsylvania
4. NEW FIND of white / colorless GROSSULAR GARNET "Galaxy Garnet" from California
5. Rare, good sized crystals of ANDORITE from the San Jose Mine, Bolivia
6. An unusual and rarely seen ETCHED PYRITE crystal from Washington
7. Cool "floater" GYPSUM specimen with "fishtail"-twin from Canada
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

PRE-TUCSON SPECIAL MINERAL COLLECTION LIQUIDATION AUCTION:
featuring OLD CLASSICS - ends Thursday Jan 31, 2019

ends Thursday Jan 31, 2019
at 6:30 PM (Central Time Zone)

This auction features a large group of minerals spanning over 100 years of history, mostly pulled from the collections of lifelong mineral collectors Kay Robertson and David Burgess. These are pieces nobody has seen for sale yet, offered to auction for the first time! Look for superb old classics ! Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Crystallized GOLD specimens
2. NEW FIND of WAVELLITE from Ireland
3. Superb CALCITES from the George Feist Collection
4. Rare FERGUSONITE from Texas!
5. Specimens from the Rob Sielecki Australian Collection including a fine large
BUSTAMITE and a matrix Namibia AMETHYST
6. Sharp LONDONITE xl and a Rare NATIVE IRON slab from Russia
7. NEW FIND of DRAVITE-SCHORL from Brazil
8. Rare pink FLUORITE w/ green YTTRIUM centers from Colombia

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends January 24, 2019

Ends Thursday, January 24th, 2019 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

MINERAL COLLECTION LIQUIDATION AUCTION - SPECIAL NEW YEAR'S COLLECTION AUCTION SET:
featuring OLD CLASSICS - ends Thursday Jan 24, 2019

ends Thursday Jan 24, 2019
at 6:30 PM (Central Time Zone)

This auction features a large group of minerals from the collection of lifelong collector and friend Allen Dillwith, who has culled his first collection to refocus the collection. Look for superb locality fluorites and interesting USA finds. We are also continuing to process material from the wonderful old mineral collections and purchases from 2018, and expect more surprises to come. Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Crystallized GOLDS from Venezuela and Newfoundland
2. Unusual gem AQUAMARINE
3. Superb LEGRANDITE
4. RHODOCHROSITE from the W.S.Logan Coll.
5. Rare large old stalactitic WAVELLITE from Pennsylvania
6 . Superb and rare ARSENOPYRITE, and a HUGE SMITHSONITE from MEXICO
7. Classic OLD ENGLISH CALCITE and FLUORITES

SPECIAL MINERAL AUCTION - $499 RESERVE LIQUIDATION SPECIMENS - ends Thursday, January 24, 2019

Ends Thursday, January 24, 2018
at 6:45 PM (Central Time Zone)

Continuing with our special themed auctions we've put together a selection of higher-end specimens all starting with $499 reserve bids. NEARLY every piece in this auction is valued at $1,500 MININUM in the inventory (some are valued at $2,000+). There are plenty of classic and contemporary, fine quality, attractive display pieces from around the world.

PLEASE NOTE: Due to the larger size and weight of some of the pieces in this auction, 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!

$25 and $10 RESERVE GEMSTONE AUCTION - Ends January 17th, 2019

Ends January 17th, 2019 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) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday January 17th, 2019

Ends Thursday, January 17th, 2019
at 6:45 PM (Central Time Zone)


We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including Francesco Bedogné, Rolando Gioia, Charlie Key, Dr. Stephen Smale, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. GEM PINK FLUORITE crystal from Pakistan
2. Odd VIVIANITE pseudomorph after Belemnite Fossil from New Jersey!
3. 150+ year old PSILOMELANE specimen from Germany (with Dr. August Kranz label)
4. Beautiful gemmy phantom FLUORITE specimen from China (ex Dr. Stephen Smale Collection)
5. New discoveries from Peru include a piece of the so-called "COCONUT" ANDRADITE GARNETS and a lovely PINK and LAVENDER OPAL
6. A wonderful 2 piece set of CASSITERITES from Brazil (ex Francesco Bedogné Collection)
7. Rarities include species like KIDDCREEKITE and SAMARSKITE-(Y)
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

MINERAL COLLECTION LIQUIDATION AUCTION - SPECIAL NEW YEAR'S COLLECTION AUCTION SET:
featuring OLD CLASSICS - ends Thursday Jan 17, 2019

ends Thursday Jan 17, 2019
at 6:30 PM (Central Time Zone)

This auction features a large group of minerals from the collection of lifelong collector and friend Allen Dillwith, who has culled his first collection to refocus the collection. Look for superb locality fluorites and interesting USA finds. We are also continuing to process material from the wonderful old mineral collections and purchases from 2018, and expect more surprises to come. Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Fine large cyclic-twin CERUSSITE from Tsumeb
2. Rare RHODOCHROSITES from Colorado
3. Selection of large specimens
4. Classic gemmy RED BERYL thumbnail
5. Rare large Texas CALCITE
6. Autographed rare SZENICSITE & POWELLITE combination

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends January 10, 2019

Ends Thursday, January 10th, 2019 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

MINERAL COLLECTION LIQUIDATION AUCTIONS - SPECIAL NEW YEAR'S COLLECTION SALE:
featuring OLD CLASSICS - ends Thursday Jan 10, 2019

ends Thursday Jan 10, 2019
at 6:30 PM (Central Time Zone)

This auction features a large group of minerals from the collection of lifelong collector and friend Allen Dillwith, who has culled his first collection to refocus the collection. Look for superb locality fluorites and interesting USA finds. We are also continuing to process material from the wonderful old mineral collections and purchases from 2018, and expect more surprises to come. Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Rare Indian APATITE from a NEW FIND
2. Sharp matrix CARROLLITE
3. Specimens from the Dr. S. Moreton collection - BRITISH MINERALS
4. Rich large Colorado HUBNERITE and LARGE AMAZONITE TWINNED XL
5. Large matrix AQUAMARINE xl from China
6. Classic large old-time Butte CHALCOCITE
7. Matrix AQUAMARINE from Connecticut
8. NEW FIND of WAVELLITE from Ireland
9. RHODOCHROSITE from the Logan Collection

SPECIAL MINERAL AUCTION - $249 RESERVE LIQUIDATION SPECIMENS - ends Thursday, January 10, 2019

Ends Thursday, January 10, 2019
at 6:45 PM (Central Time Zone)

Starting off the New Year, we are continuing with our special themed auctions, and we've put together a selection of higher-end specimens all starting with $249 reserve bids. Every piece in this auction is valued at least at $700-$750 in the inventory (some are valued at $1,500+), so everything piece is 65% off retail and nearly 85% in some cases! There are plenty of classic and contemporary, fine quality, attractive display pieces from around the world.

PLEASE NOTE: Due to the larger size and weight of some of the pieces in this auction, 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!

SPECIAL AUCTION: RARE SPECIES & CLASSIC OLD MINERALS
from the Kay Robertson Mineral Collection
ends TUESDAY January 8th, 2019

NOTE SPECIAL END DAY: TUESDAY January 8th, 2019
at 630 PM (Central Time Zone)!


The Kay Robertson collection has thus far afforded a great deal of intellectual and mineral pleasure to us here at The Arkenstone, as well as collectors around the globe. Many specimens are of historical and mineralogical interest, so working with them has been a truly gratifying experience.
With 5 updates and several previous auctions already done, we thought it would be a fun change of pace to produce a totally dedicated "Kay auction," and let things go where they may. Please note that a number of these specimens were purchased by Kay 50-60 years ago, at prices that ranged from several dollars to several hundreds of dollars at the time. If these were the prices a half-century ago, just imagine what the possible values are now. There might be some real bargains to be had! Text and photos by collector, Jeff Starr.
For those unfamiliar with the Kay Robertson Collection, Kay is a prominent California collector who specialized in European classics (see our blog at www. https://www.irocks.com/kay-robertson-a-treasure-in-the-mineral-collecting-world ; and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017). Happy hunting!

SPECIAL END OF THE YEAR / HOLIDAY HIGHER RESERVE GEMSTONE and JEWELRY AUCTION - Ends January 3rd, 2019

Ends Thursday, January 3rd, 2019 at 7:15 PM (Central Time)

For the end of the year, we have put together a great assortment of some special higher reserve items (starting at $50 and going up to $300) with some beautiful pieces of jewelry along with excellent faceted gems including classics like Ruby, Sapphire, Emerald, Tourmaline, Alexandrite and Tanzanite all the way to attractive rarities such as Benitoite, Sphalerite, Bastnasite and Hackmanite. A great mix with some fine pieces at below wholesale starting bids .

Questions about Gems?: CONTACT Gem admin Brian Kosnar: click here

SPECIAL NEW YEAR'S MINERAL AUCTION - MINIATURES AND THUMBNAILS FROM THE COLLECTION of IRV BROWN - ends January 3, 2019

Ends Thursday, January 3rd, 2019
at 7:00 PM (Central Time Zone)

Continuing with our special themed auctions we are thrilled for our next installment featuring miniature and thumbnail specimens from the worldwide collection of Irv Brown.

Irv has assembled one of the great collections in the United States, which typically has featured cabinet sized display specimens, but over the years he assembled an attractive suite of thumbnails and miniatures. We recently acquired several flats of these specimens and are thrilled to offer them in installments in the auctions over the next few months.

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.

Lastly, this auction closes on our normal Thursday schedule, just a little later, but we'll send out a reminder / announcement before it closes to you don't miss out.

NEW YEAR'S MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - featuring specimens from the newly acquired DAVID BURGESS COLLECTION - end Thursday January 3rd, 2019

Ends Thursday, January 3rd, 2019
at 6:45 PM (Central Time Zone)


This set will run for two weeks so as not to interfere with the Christmas and New Year's holidays. We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including pieces from the newly acquired DAVID BURGESS COLLECTION along with Willard Wulff, Paolo Matioli, Rolando Gioia, Charlie Key, Geary Murdock etc., plus various 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 auction include:

1. Wonderful, very sharp, highly lustrous, AZURITE crystals with MALACHITE from Milpillas, Mexico
2. Beautiful BI-COLORED (PINK and PURPLE) SAPPHIRE crystal from Winza, Tanzania
3. Fantastic multi-colored "phantom" FLUORITE crystal group from the Denton Mine, Illinois
4. Classic, unique "TRAPICHE" EMERALD from Muzo, Colombia
5. Fine old time pseudomorph of blue-green CHRYSOCOLLA from the Ray Mine, Arizona
6. Fantastic WATER CLEAR AQUAMARINE crystals on Albite from Pakistan
7. Large, blocky, thick, very well-formed "BAVENO"-TWINNED MICROCLINE from Pakistan
8. Rarities include GRANDIDIERITE, FRESNOITE, ZEKTZERITE, & TINAKSITE with CHAROITE

NEW YEAR'S MINERAL COLLECTION AUCTIONS:
featuring NEW FINDS, OLD CLASSICS, GEM CRYSTALS and RARE SPECIES - ends Thursday Jan 3rd, 2019

Ends Jan 3rd, 2019
at 6:30 PM (Central Time Zone)

50 specimens for our first auction of the New Year featuring of attractive, unique, classic and rare minerals from contemporary and famous worldwide localities. A great mix featuring specimens from our overstocked inventory, liquidations of the many collections we’ve purchased, and assorted pieces from new finds and definitive localities !! Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Superb gem TOURMALINE from Pakistan 2. Outstanding ENGLISH specimens from the Dr. S. Moreton Collection 3. Specimens from the David Burgess and Allen Dillwith Collections 4. Excellent selection of FLUORITE specimens 5. Classic large ANGLESITE & GALENA from Touissit 6. NEW FIND of PYRITE from Peru 7. Fine large old Utah MALACHITE 8. NEW FIND of RARE YELLOW TOURMALINE from Pakistan 9. Large rare RHODOCHROSITE from the N'Chwaning III Mine with an unknown 10. Superb FLUORITE from China 11. Rare Tsumeb ANGLESITE combination 12. Excellent Chinese PLUMBOGUMMITE after PYROMORPHITE

END OF THE YEAR FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday December 20th, 2018

Ends Thursday, December 20th, 2018
at 6:45 PM (Central Time Zone)


Our final auction of 2018! We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including Willard Wulff, Paolo Matioli, Rolando Gioia, Charlie Key, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. Beautiful unique, bi-colored, purple and yellow AMETRINE slice from Bolivia
2. Lovely pink spherical RHODOCHROSITE on QUARTZ from Peru
3. A classic, THICK / blocky AZURITE ROSE from the 1980s from China
4. "FLOATER" GEM TWINNED SPODUMENE from Brazil (ex Rolando Gioia Collection
5. New discoveries from Peru include a piece of the so-called "COCONUT" ANDRADITE GARNETS and a lovely PINK OPAL
6. "Sand" CALCITE from South Dakota and CALCITE with MALACHITE from Tsumeb (ex Geary Murdock Collection)
7. Gorgeous COLOR CHANGE "phantom" FLUORITE from France (ex Paul Zerfass Collection)
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

PRE-CHRISTMAS END OF THE YEAR MINERAL COLLECTION AUCTIONS:
featuring OLD CLASSICS, GEM CRYSTALS and RARE SPECIES - ends Thursday Dec 20th, 2018

ends Thursday Dec 20, 2018
at 6:30 PM (Central Time Zone)

End of the year auction! Our next auctions will close in January, so this is it for 2018. A selection of specimens in this week's auctions with a mix of classics, gem crystals, contemporary minerals and rare species ! We are continuing to process material from the wonderful old mineral collections and purchases including 1960s-90s specimens from the collections of Paul Zerfass, Ted Bartels, Tom Wolfe and Barratt Phillips Collections, and 60 years of collecting history from the Kay Robertson Collection. Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Superb CUPRITE from the Onganja Mine
2. Large Montana AMETHYST from the Geary Murdock Collection
3. Classic French BOURNONITE & SPHALERITE
4. Specimens from the David Burgess Collection
5. Large Russian FLUORAPATITE
6. RHODOCHROSITES from the W.S. Logan Collection
7. Excellent large Indian ZEOLITES
8. Old fine PYROLUSITE from Ilfeld
9. Unusual large old Broken Hill CALCITE

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends December 13th, 2018

Ends Thursday, December 13th, 2018 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) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday December 13th, 2018

Ends Thursday, December 13th, 2018
at 6:45 PM (Central Time Zone)


We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including Willard Wulff, Brian Lloyd, Rolando Gioia, Charlie Key, Geary Murdock and plenty of pieces from Kay Robertson along with various 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 auction include:

1. Large, fine, stout, jet-black FERBERITE crystal group from the Tasna Mine, Bolivia
2. Gemmy, beautiful pink color ETCHED & SMOOTH / LUSTROUS MORGANITE BERYL crystal from Brazil
3. A 5-piece group of bright MULTI-COLOR OPAL specimens from ETHIOPIA
4. Classic "tree"-like display specimen of CALCITE from Bisbee, Arizona
5. Old classic fine quality PYROMORPHITE from the Bunker Hill Mine, Idaho (ex Geary Murdock Collection)
6. Hard to find US specimens, such an old time MORGANITE from the Elizabeth R. Mine in California and a rarely seen ROSE QUARTZ from Maine (ex Geary Murdock Collection)
7. Gorgeous beautiful purple colored FLOURESCENT HACKMANITE SODALITE from Afghanistan (ex Francesco Bedogné Collection)
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

HOLIDAY SEASON MINERAL COLLECTION AUCTIONS SET #1:
- ends Thursday Dec 13th, 2018

ends Thursday Dec 13, 2018
at 6:30 PM (Central Time Zone)

NEW COLLECTIONS PURCHASED! Look for more old classics, especially from Europe and the East Coast, from a Brazilian collection and from the collections of David Burgess and Kay Robertson. Our auctions present the largest mix of classics, gem crystals, contemporary minerals and rare species ! We are continuing to process material from the wonderful old mineral collections and purchases including 60 years of collecting history from the Kay Robertson Collection with so many mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Gem AQUAMARINES from Pakistan and Brazil
2. Classic old ANGLESITE from Sardinia
3. Excellent COBALTOAN CALCITES
4. Excellent AMETHYST scepters from Mexico
5. Rare old HYDROXYLHERITE from the Xanda Mine
6. Old NAGYAGITE from the Type Locality
7. Rhodochrosites from the W.S. Logan Collection
8 Fine TOURMALINES from Brazil
9. Large VARISCITE nodule
10. Large rich emerald-green FLUORITE from the Rogerley Mine
and other English specimens from the Dr. S. Moreton Collection

$25 and $10 RESERVE GEMSTONE AUCTION - Ends December 6th, 2018

Ends December 6th, 2018 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 MINERAL AUCTION - $499 RESERVE LIQUIDATION SPECIMENS - ends Thursday, December 6, 2018

Ends Thursday, December 6, 2018 at 6:45 PM (Central Time Zone)

Continuing with our special themed auctions we've put together a selection of higher-end specimens all starting with $499 reserve bids. Every piece in this auction is valued at $1,500 MININUM in the inventory (some are valued at $3,000+). There are plenty of classic and contemporary, fine quality, attractive display pieces from around the world.

PLEASE NOTE: Due to the larger size and weight of some of the pieces in this auction, 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!

POST-THANKSGIVING MINERAL COLLECTION AUCTIONS:
featuring OLD CLASSICS, GEM CRYSTALS and RARE SPECIES - ends Thursday Dec 6th, 2018

ends Thursday Dec 6, 2018
at 6:30 PM (Central Time Zone)

A selection of specimens in this week's auctions with a mix of classics, gem crystals, contemporary minerals and rare species ! We are continuing to process material from the wonderful old mineral collections and purchases including 1960s-90s specimens from the collections of Paul Zerfass, Ted Bartels, Tom Wolfe and Barratt Phillips Collections, and 60 years of collecting history from the Kay Robertson Collection. Lots of rare mineral specimens here that are hard to find at ANY price, let alone at auction!


Some of the highlights from this week’s include:

1. Gemmy large RUBELLITE TOURMALINE from the Steve Smale Collection
2. Rare large RHODOCHROSITE from Kazakhstan
3. Bizarre large casted QUARTZ
4. Classic English GALENA & ANKERITE from the Gene Meieran Collection
5. Exotic and rare MANGANOAN CALCITE combination from the Wessels Mine
6. Fine DIOPSIDE thumbnail from the Merelani Hills
7. Unique Mexican CHALCEDONY pseudomorph from the Ken Roberts Collection

SPECIAL $100 and $50 RESERVE GEMSTONE AUCTION - Ends November 29th, 2018

Ends Thursday, November 29th, 2018 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) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday November 29th, 2018

Ends Thursday, November 29th, 2018
at 6:45 PM (Central Time Zone)


We have a great selection of material that we picked up over the last few months along with rarities, unusual pieces, gem crystals, classics and display specimens. Look for new goodies from recent shows / discoveries along with new collection acquisitions to appear in the coming weeks. You'll even find a few fossils, carvings / lapidary items and gemstones mixed in every now and then. We'll still have selections from various collections we've obtained including Willard Wulff, Brian Lloyd, Rolando Gioia, Charlie Key and plenty of pieces from Kay Robertson along with various 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 auction include:

1. Tsumeb minerals like a gemmy reticulated CERUSSITE and a COBALTOAN SMITHSONITE
2. A unique etched sculptural deep purple cubic FLUORITE specimen from Illinois (ex Ross Lille Collection)
3. Rarely seen specimen of "Reef" GOLD from Georgia!
4. An unusually FLUORESCENT AQUAMARINE from China
5. Old classic botryoidal SPHALERITE with GEM BARITE from Romania
6. A cool polished sphere of classic purple CHAROITE from Russia
7. Beautiful electric blue HEMIMORPHITE from China
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection