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Kay Robertson Collection

I will say that, in a world full of characters and crazy collectors, Kay stands out as one of the most passionate collectors I have had the privilege to know – She was as passionate about minerals and the glory of knowledge that comes from them, as she must have been 90 years ago when she started.

In April 2017 we packed up her collection to share these treasures with a new era of collectors while Rob had a chance to visit with her and hear stories of some of her pieces. Read some of Dr. Rob Lavinsky's favorite experiences with her in our blog entry featuring Kay.

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1-24 of 344 Items
Galena and Marcasite, on Quartz
KRF-29
Galena and Marcasite, on Quartz
Pfannenberger Einigkeit Mine, Siegerland, North Rhine-Westphalia, Germany
Cabinet
13.3 x 9.4 x 4.2 cm
$1,800.00
Order Now
Details
Tetrahedrite and Sphalerite on Quartz (dated 1830)
KRF-13
Tetrahedrite and Sphalerite on Quartz (dated 1830)
Cavnic, Maramures Co., Romania
Small Cabinet
6.1 x 5.9 x 2.6 cm
$1,250.00
Order Now
Details
Axinite-(Fe)
KRF-08
Axinite-(Fe)
Puiva Mount, Saranpaul, Prepolar Ural, Western-Siberian Region, Russia
Small Cabinet
5.4 x 4.1 x 1.1 cm
$2,250.00
Order Now
Details
Calcite (fluorescent) on Quartz
KRF-02
Calcite (fluorescent) on Quartz
La Luz mine, La Luz, Guanajuato, Mexico
Small Cabinet
9.2 x 7.5 x 3.5 cm
$750.00
Order Now
Details
Quartz var. Amethyst with phantoms
KRE-63
Quartz var. Amethyst with phantoms
La Sirena Mine, Mun. de Guanajuato, Guanajuato, Mexico
Small Cabinet
5.9 x 4.8 x 3.0 cm
$950.00
Order Now
Details
Chalcopyrite with Galena and Siderite
KRE-60
Chalcopyrite with Galena and Siderite
Georg Mine, Willroth, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
Small Cabinet
8.4 x 7.7 x 3.4 cm
$1,450.00
Order Now
Details
Anhydrite
KRE-53
Anhydrite
Bad Aussee, Styria, Austria
Miniature
4.3 x 4.1 x 3.3 cm
$1,250.00
Order Now
Details
Hemimorphite
KRE-41
Hemimorphite
Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Small Cabinet
6.3 x 5.6 x 4.4 cm
$950.00
Order Now
Details
Calcite
KRE-37
Calcite
Egremont, West Cumberland Iron Field, Cumbria, England, UK
Cabinet
10.5 x 6.0 x 4.5 cm
$1,000.00
Order Now
Details
Tarbuttite (Type Locality) (fl)
KRE-29
Tarbuttite (Type Locality) (fl)
Kabwe Mine (Broken Hill Mine) No. 2, Kabwe District, Central Province, Zambia
Miniature
5.1 x 2.2 x 1.5 cm
$950.00
Order Now
Details
Scheelite (fluorescent)
KRE-27
Scheelite (fluorescent)
Santa Cruz, Mun. de Santa Cruz, Sonora, Mexico
Miniature
4.2 x 3.4 x 3.3 cm
$950.00
Order Now
Details
Hematite
KRE-26
Hematite
N'Chwaning Mine, Kalahari manganese field, Northern Cape Province, South Africa
Miniature
4.1 x 3.2 x 2.1 cm
$750.00
Order Now
Details
Fluorite (fluorescent) circa 1868
KRE-23
Fluorite (fluorescent) circa 1868
Wheal Mary Ann, Menheniot, Liskeard District, Cornwall, England, UK
Small Cabinet
6.7 x 5.3 x 4.6 cm
$6,000.00
Order Now
Details
Adamite "pinwheel"
KRE-19
Adamite "pinwheel"
Ojuela Mine, Mapimi, Mun. de Mapimi, Durango, Mexico
Miniature
3.9 x 3.6 x 1.8 cm
$3,500.00
Order Now
Details
Copper
KRE-03
Copper
Turinskii Mine, Krasnoturinsk, Middle Urals, Urals Region, Russia
Miniature
4.4 x 2.4 x 1.0 cm
$1,500.00
Order Now
Details
Hureaulite
KRD-56
Hureaulite
Hagendorf, Waidhaus, Upper Palatinate, Bavaria, Germany
Thumbnail
2.8 x 2.1 x 1.6 cm
$2,250.00
Order Now
Details
Malachite pseudo. Azurite
KRD-54
Malachite pseudo. Azurite
Campbell Shaft, Bisbee, Mule Mts, Cochise Co., Arizona, USA
Miniature
4.0 x 2.4 x 1.3 cm
$1,250.00
Order Now
Details
Siderite
KRD-43
Siderite
Tincroft Mine, Pool, Redruth, Cornwall, England, UK
Small Cabinet
6.6 x 4.6 x 3.6 cm
$1,450.00
Order Now
Details
Malachite pseudo. after Azurite
KRD-40
Malachite pseudo. after Azurite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Small Cabinet
8.3 x 6.5 x 6.4 cm
$4,500.00
Order Now
Details
Fluorite (twinned) included by Cinnabar, with Pyrite - illustrated
KRD-34
Fluorite (twinned) included by Cinnabar, with Pyrite - illustrated
Cacilia Mine, Freiung, Wolsendorf Fluorite Mining District, Bavaria, Germany
Cabinet
9.6 x 8.4 x 5.4 cm
$1,750.00
Order Now
Details
Fluorapatite (fluorescent) with scepter cap
KRD-25
Fluorapatite (fluorescent) with scepter cap
Shengus, Haramosh Mts., Skardu District, Gilgit-Baltistan, Pakistan
Miniature
3.4 x 1.7 x 1.4 cm
$750.00
Order Now
Details
Cassiterite (twinned)
KRD-22
Cassiterite (twinned)
Viloco Mine, Loayza Province, La Paz Department, Bolivia
Miniature
5.2 x 4.9 x 3.2 cm
$1,500.00
Order Now
Details
Corundum var. Sapphire.
KRC-71
Corundum var. Sapphire.
Inverell, New South Wales, Australia
Thumbnail
2.9 x 1.6 x 1.1 cm
$750.00
Order Now
Details
Anhydrite with Pyrite
KRC-66
Anhydrite with Pyrite
Campiano Mine, Montieri, Grosseto Province, Tuscany, Italy
Small Cabinet
7.4 x 6.7 x 4.0 cm
$750.00
Order Now
Details
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The Wisdom Pocket Blog

Sep 5, 2023

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We're excited to be Colorado-bound soon, for the 2023 Hard Rock Summit show in Downtown Denver, opening September 15, and we hope to see you there.

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Aug 24, 2023

Transcending Barriers

Rare Earth: The Art and Science of Chinese Stones, recently on view at the Crow Museum of Asian Art of The University of Texas at Dallas, explores the different ways that Chinese and Western cultures have celebrated the beauty found in, and created from, natural stones.

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May 23, 2023

Enhancements Coming Soon to MineralAuctions.com!

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May 1, 2023

Rock Roundup: April 2023 Edition

Welcome to the monthly rock round up where we recap some of our favorite and interesting specimens that we've uploaded this month. In case you missed it, here's a quick rundown on some of what we think you should check out!

Read More

Apr 26, 2023

Peruvian Treasures

Between the recent Peruvian finds of saturated chrysocolla, deep green fluorite, and mirror-like pyrites, this region of the world is definitely experiencing a resurgence in interest from mineral collectors. We blended a combination crystals from newer finds and old classics (think old Peruvian rhodochrosites from the Jack Halpern collection, plus new chrysocolla specimens from Tentadora) to showcase a range of beautiful material from an assortment of Peruvian localities.

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Apr 1, 2023

The Search for the Perfect Stone

This year at in Tucson, The Arkenstone and Dr. Rob Lavinsky were featured in an interview by Rachel Monroe of The New Yorker titled, "The Search for the Perfect Stone."

Read More

Mar 17, 2023

The Arkenstone Heads West!

Our Spring West Coast Road Show is coming up fast, and we've enjoyed our annual San Fran trips over the last decade. This year, we're adding LA to our list, too. We hope to see you for minerals and light bites.  Please make sure to let us know if you're looking for anything specific, so we can pack with you in mind! This is also a great opportunity for us to hand-deliver specimens to clients who might be interested in delicate species that might be concerning to ship, as well. 

Read More

Feb 23, 2023

Rare Earth: Crystalline Treasures

Rare Earth: Crystalline Treasures, ran through September 5th, 2022 at the Santa Barbara Museum of Natural History and featured more than 200 spectacular mineral specimens from around the world. Many of these were on loan from the renowned collector and mineral dealer, Dr. Rob Lavinsky. The exhibit was uniquely interwoven with various themes and stories that make inspirational connections between architectural design & earth materials, art+science+culture, carvings and illustrations, striking color, fanciful formations, and a few cases at the end that took a deeper dive into crystal form.

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Jan 12, 2023

Collector Profile: Dr. Erika Pohl-Stroher

Dr. Erika Pohl-Ströher collected the minerals in her collection over a period of more than 60 years. The specimens are arranged according to geographical regions. Considering that Dr. Pohl-Ströher had no intention of exhibiting her mineral collection and therefore did not make a conscious effort to ensure that she obtained specimens from all over the world, she has succeeded remarkably well in setting up an extensive, comprehensive and magnificent collection that includes minerals from every continent.

Read More

Dec 16, 2022

Collector interview: Alex Schauss

In this interview by Tomasz Praszkier, Alex Schauss shares some of his family history, and talks about his career researching nutrition and botanical medicine, and how these disciplines relate to his passion for mineralogy.

Read More
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