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MINERAL COLLECTION AUCTIONS (set 1 of 2) - ends Thursday June 20, 2019

Specimens Available: 46

ends Thursday June 20, 2019
at 6:30 PM (Central Time Zone)

The biggest mix of old classic minerals from old mineral collections - all at Auction!: highlights include pieces from newly acquired collections such as Shields Flynn (TSUMEB! & ERONGO!) and Bill Logan (RHODOCHROSITE) as well as Steve Smale (CHINA!). We are releasing more material from Burgess and Robertson collections of old classics, as well - Look for a great mix of old classics and specimens you'd expect to see at retail prices at shows!

Some of the highlights from this week’s include:

1. RHODOCHROSITES from the Logan Collection
2. TSUMEB minerals!
3. Color-zoned Illinois FLUORITE
4. Rare Brandberg AMETHYST with a movable bubble
5. ex Steve Smale, old 2002-2003 era Chinese PYROMORPHITE
6. Large MEXICO CALCITE stalactite
7. Superb Stak Nala TOURMALINE & QUARTZ
8. Fine and rare Hilton Mine FLUORITE combination

FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - end Thursday June 20th, 2019

Specimens Available: 45

Ends Thursday, June 20th, 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, Tom Campbell and Dr. William Logan along with pieces from Charlie Key and Rich Kosnar, plus 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. Interesting and eye-catching bi-colored blue and white AQUAMARINE / BERYL from Pakistan
2. Newly mined electric pink colored "THULITE" (Mn-bearing Zoisite) from Norway
3. An attractive soft pink CHALCEDONY from the childhood home of Sandra Day O'Connor in Arizona
4. Wonderful purplish-pink "Trapiche" SAPPHIRE crystal from Mogok, Myanmar
5. An unusual brownish RHODOCHROSITE from Bulgaria (ex Dr. William Logan Collection)
6. Fine, sharp, lustrous, "porcelain"-esque PERICLINE ALBITE from the Austrian Alps
7. Rare species include BUTTGENBACHITE and GERSDORFFITE
8. Page 2 features assorted worldwide minerals (focusing on European and North American localities) from the Kay Robertson Collection

from the Kay Robertson Mineral Collection
ends Tuesday June 25th, 2019

Specimens Available: 88

at 6:30 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.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. ;
and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017).

Happy hunting!