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The Erika Pohl-Ströher Collection

May 8, 2025: We are honored to present releases from the Dr. Erika Pohl-Ströher (1919-2016) collection of specimens in gallery format for purchase, in collaboration with the Pohl family. Dr. Pohl amassed the largest known collection of minerals, during her more than 70 years of collecting activity. She specialized in "everything," and so the collection is made up of suites approaching 100,000 specimens which we are selecting from. We started 2023 with auction sales to bring out just the first teasers from her vast collection spanning the "Golden Era" of mineral collecting in the late 1900s.

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1-24 of 118 Items
Schneiderhöhnite
POHL25-054
Schneiderhöhnite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
1.2 x 0.8 x 0.4 cm
$1,200.00
Order Now
Details
Leiteite
POHL25-053
Leiteite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.6 x 0.9 x 0.6 cm
$2,000.00
Order Now
Details
Tarnowitzite on Smithsonite, with Cerussite
POHL25-052
Tarnowitzite on Smithsonite, with Cerussite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.8 x 1.8 x 1.5 cm
$400.00
Order Now
Details
Mimetite
POHL25-050
Mimetite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.3 x 0.7 x 0.6 cm
$600.00
Order Now
Details
Chalcocite
POHL25-047
Chalcocite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.1 x 1.4 x 1.1 cm
$2,000.00
Order Now
Details
Dioptase on Calcite with Duftite
POHL25-042
Dioptase on Calcite with Duftite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
4.9 x 2.8 x 2.5 cm
$1,800.00
Order Now
Details
Calcite with Dioptase and Duftite
POHL25-041
Calcite with Dioptase and Duftite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.9 x 2.5 x 1.5 cm
$350.00
Order Now
Details
Wulfenite
POHL25-038
Wulfenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.7 x 2.1 x 0.8 cm
$2,500.00
Order Now
Details
Zincolivenite
POHL25-037
Zincolivenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.5 x 0.3 x 0.3 cm
$2,400.00
Order Now
Details
Zincolivenite
POHL25-035
Zincolivenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.3 x 0.6 x 0.6 cm
$250.00
Order Now
Details
Mimetite
POHL25-034
Mimetite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
1.8 x 1.3 x 0.8 cm
$1,200.00
Order Now
Details
Wulfenite
POHL25-033
Wulfenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.6 x 1.9 x 1.6 cm
$2,250.00
Order Now
Details
Malachite with Azurite
POHL25-032
Malachite with Azurite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
3.4 x 2.7 x 2.3 cm
$450.00
Order Now
Details
Mimetite on Cerussite
POHL25-031
Mimetite on Cerussite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
3.4 x 2.3 x 1.3 cm
$750.00
Order Now
Details
Wulfenite
POHL25-029
Wulfenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
3.6 x 3.6 x 0.8 cm
$3,000.00
Order Now
Details
Cerussite
POHL25-026
Cerussite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.3 x 2.2 x 2.1 cm
$400.00
Order Now
Details
Schneiderhöhnite
POHL25-023
Schneiderhöhnite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
1.9 x 1.8 x 0.9 cm
$3,500.00
Order Now
Details
Heterogenite
POHL25-022
Heterogenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
3.5 x 2.4 x 1.3 cm
$750.00
Order Now
Details
Conichalcite
POHL25-020
Conichalcite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
3.0 x 1.9 x 1.6 cm
$1,450.00
Order Now
Details
Cerussite (twinned) on Cerussite
POHL25-019
Cerussite (twinned) on Cerussite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
1.8 x 1.7 x 1.3 cm
$2,000.00
Order Now
Details
Wulfenite
POHL25-015
Wulfenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.8 x 2.2 x 1.4 cm
$950.00
Order Now
Details
Leiteite
POHL25-014
Leiteite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
3.8 x 0.9 x 0.4 cm
$1,950.00
Order Now
Details
Scorodite with unknown
POHL25-013
Scorodite with unknown
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Miniature
3.7 x 1.6 x 1.2 cm
$1,950.00
Order Now
Details
Wulfenite
POHL25-012
Wulfenite
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Thumbnail
2.5 x 2.3 x 1.1 cm
$1,200.00
Order Now
Details
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The Wisdom Pocket Blog

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Jun 3, 2025

May 2025 Rock Roundup

Welcome to this month's Rock Roundup! Here, we showcase some of the most exciting and favorite specimens recently available for sale. If you missed it, don't worry—we've got a quick recap of the top picks you won't want to miss. This edition features remarkable highlights from the Dr.Stephen Smale Update, the Dr.Erika Pohl-Ströher Update, and our freshly added Update of Golds from the new Eagle's Nest Mine Find.

Read More

May 23, 2025

Stephen Smale: A Mathematician's Love for Minerals

We are truly honored to have been entrusted with the opportunity to present a selection of fine minerals from Stephen Smale's renowned collection. We have slowly unveiled portions of his collection at shows, online updates, and exclusive auctions. We are thrilled to share an exciting new update from his renewed collection, bringing more of these fine pieces to collectors and enthusiasts alike. If you’ve ever studied the mathematical proof of sphere eversion or the Poincaré conjecture, then you’ve likely heard of Stephen Smale. As an esteemed professor of mathematics at many of the

Read More

Apr 30, 2025

Rock Roundup: April 2025 Edition

Welcome to this month's Rock Roundup! Here, we showcase some of the most exciting and favorite specimens recently available for sale. If you missed it, don't worry—we've got a quick recap of the top picks you won't want to miss. This edition features remarkable highlights from the Jack Halpern update, Assorted New Finds & Acquisitions, and our freshly added Update of Cut and Polished Gems.

Read More

Mar 31, 2025

Rock Roundup: March 2025 Edition

Welcome to this month's Rock Roundup! Here, we showcase some of the most exciting and favorite specimens recently available for sale. If you missed it, don't worry—we've got a quick recap of the top picks you won't want to miss. This edition features remarkable highlights from the rare mineral species update, and the Wayne Thompson update, and upcoming mineral auctions in April.

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Mar 5, 2025

The "Red Ridge" Mine Gold

Did you find us while you're hunting for treasure? You're not alone! We're tickled to have so many treasure hunters digging around the internet looking for information about the "Red Ridge" mine gold featured in There's Treasure Inside by Jon Collins-Black. If you're new to the hunt, here's some background: one of our friends (and fellow mineral collectors) created a treasure hoard with two million dollars and stashed it in 5 different caches around the US.

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Jan 27, 2025

Liebetrau Collection to debut in Tucson 2025

We are honored to announce our acquisition of the Liebetrau Collection. Al and Sue Liebetrau, renowned exhibitors, authors, and contributors to the mineral community, spent nearly 70 years assembling this exceptional worldwide collection. The collection features their award-winning display suite, published specimens, notable fluorite sub-collection, and an extensive, important fluorescent collection. The first release of the Liebetrau Collection will debut at our Tucson 2025 Show at our gallery in La Fuente. Additional releases from the collection will be available online in the coming months as well. We invite you to experience the beauty and wonder of the Liebetrau Collection.

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Jan 10, 2025

2025 Tucson Gem and Mineral Showcase

The annual Tucson show season is almost here and we're looking forward to seeing you there soon! We've expanded our exhibit space to include a new museum-style gallery and bring you more amazing selections from iconic collections such as Jack Halpern, Dr. Erika Pohl-Ströher, Stretch Young (Pseudomorphs), Al and Sue Liebetrau, George Loud, and tons more. Come by and see the expanded gallery space and enjoy all the new offerings we have to share!

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Favorite Stories from Insta Friends

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Dec 10, 2024

AGTA's Spectrum and Cutting Edge Awards

As much as our crew has enjoyed the gem shows, one of Arkenstone team member Monica Kitt's favorite AGTA events is the annual gem and jewelry competition held by the organization. Inspired by our recent visit to the AGTA Spectrum Awards Editor's Day last fall, she wanted to share a bit about this prestigious jewelry and gem cutting competition.

Read More
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