Mixed Minerals from Tucson

Mixed Minerals from Tucson
February 23, 2026 · 14 specimens

R711 - Wulfenite sold

Los Lamentos, Ahumada, Chihuahua, Mexico
Thumbnail - 1.1 x 1.1 x 1.0 cm

(click on an image to enlarge)

Two intersecting 'window pane' crystals of Wulfenite from a 2025 find at the mine. Each crystal is 1.1cm on edge, perfect and undamaged. I was told by the Mexican miner (who brought this find to market) that this one was his favorite of all the thumbnails found.

R712 - Euclase $1,500 available

Itacambira, Minas Gerais, Brazil
Miniature - 3.3 x 1.9 x 1.5 cm

(click on an image to enlarge)

Thick, colorless single Euclase crystal from Brazil. A very stout, robust crystal with good transparency. Well terminated and complete all around with some cleavage faces on the narrow edges.

R713 - Tanzanite (green!) $3,000 available

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.5 x 2 x 0.9 cm

(click on an image to enlarge)

A surprise of Tucson 2026 was a small lot of green Tanzanite (Zoisite) from Merelani. Green is one of the rarest colors to find in Tanzanite and I was happy to select from this lot of about 30 crystals, the majority of which were not terminated. The termination has a mixture of flat faces and more dimpled texture. Translucent with areas of transparency and the color is amazing with green, blue green, and a vivid teal blue/green depending on orientation. Well crystallized all around and undamaged. Weighs 11.48 grams.

R714 - Tanzanite (green!) $2,000 available

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.6 x 1.6 x 0.8 cm

(click on an image to enlarge)

A surprise of Tucson 2026 was a small lot of green Tanzanite (Zoisite) from Merelani. Green is one of the rarest colors to find in Tanzanite and I was happy to select from this lot of about 30 crystals, the majority of which were not terminated. The has flat termination faces and is translucent with areas of transparency. The color is amazing with green, blue green, and and a vivid teal blue/green depending on orientation. Well crystallized all around and has a little edge chipping one one side but is otherwise undamaged. Weighs 4.06 grams.

R715 - Tanzanite (green!) $2,000 available

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.5 x 1.5 x 0.7 cm

(click on an image to enlarge)

A surprise of Tucson 2026 was a small lot of green Tanzanite (Zoisite) from Merelani. Green is one of the rarest colors to find in Tanzanite and I was happy to select from this lot of about 30 crystals, the majority of which were not terminated. The has flat termination faces and is translucent with areas of transparency. The color is amazing with green, blue green, and and a vivid teal blue/green depending on orientation. Well crystallized all around and undamaged. Weighs 2.26 grams.

R716 - Mimetite after Cerussite $3,500 available

Tsumeb, Namibia
Miniature - 4.6 x 3.5 x 3.0 cm

(click on an image to enlarge)

Fine example of the rare replacement of Mimetite after Cerussite from Tsumeb. This is an excellent old-time, rarely seen specimen from this famous mine showing the well preserved form of the original Cerussite crystals now replaced by small yellow Mimetite crystals. Well formed and complete all around. This is from the choice Tsumeb collection of Carl Acosta, then to the collection of Ben Schumer.

R717 - Zektzerite sold

Washington Pass, Okanogan Co., Washington, USA
Thumbnail - 2.5 x 2.3 x 1.7 cm

(click on an image to enlarge)

Glassy and gemmy (!) Zektzerite crystals on a matrix of Orthoclase and Arfvedsonite. This was collected in 2025 from a pocket that produced what are considered the most transparent Zektzerite ever found. The main crystal is 5mm in size, pale pinkish in color, with areas of glassy transparency. There are other smaller crystals present too.

R718 - Zektzerite $1,800 available

Washington Pass, Okanogan Co., Washington, USA
Thumbnail - 1 x 1 x 0.8 cm

(click on an image to enlarge)

Glassy and gemmy (!) single Zektzerite crystal with attached Orthoclase. The crystal is undamaged, pale pinkish in color, with areas of glassy transparency.

R720 - Borcarite sold

San Bartolo Mine, Charcas, San Luis Potosi, Mexico
Thumbnail - 2.5 x 1.5 x 1 cm

(click on an image to enlarge)

Turquoise-blue crystals of Borcarite, a rare calcium magnesium borate-chloride mineral. Usually found in massive form or powdery crusts, these recently found, well formed crystals from Charcas are perhaps the world's best. This specimen has good, large crystals to 1.5cm in size.

R721 - Silver and Gold (wire!) $3,500 available

Yukon, Canada
Thumbnail - 3.0 x 1.2 x 0.2 cm

(click on an image to enlarge)

A somewhat matched pair of Silver and Gold specimens that looked so nice together I decied to sell them as a pair. The Gold is a bright golden metallic wire from the Yukon, 3cm tall. The wire has folded over itself on one end creating a 'J' form. Wire gold is an exceptionally rare, natural form of gold. True wire Gold (unlike elongated spinel twins) show striations along the length of the wire, as is very evident in this specimen. Weighs 1.29 grams. The Silver is from the Elura Mine in Australia and is 2.5cm tall. It forms an aesthetic, curved wire-like specimen that is actually an elongated spinel-twinned crystal with smaller attached side crystals.

R722 - Tourmaline sold

PKS Mine, Cruzeiro Mtn., Minas Gerais, Brazil
Thumbnail - 3.0 x 2 x 2 cm

(click on an image to enlarge)

Well terminated, highly transparent single Tourmaline crystal with a pinkish body color and green, slightly cat's-eye termination. Note that the green is nice grass green, without the yellow the photos show. Complete and undamaged. Weighs 5 grams.

R723 - Tourmaline sold

PKS Mine, Cruzeiro Mtn., Minas Gerais, Brazil
Thumbnail - 3.0 x 2 x 2 cm

(click on an image to enlarge)

Well terminated single Tourmaline crystal with a purple lower half and a vivid cranberry red at the termination. Complete and undamaged. Weighs 4.8 grams.

R724 - Tourmaline sold

PKS Mine, Cruzeiro Mtn., Minas Gerais, Brazil
Thumbnail - 3.0 x 2 x 2 cm

(click on an image to enlarge)

Well terminated single Tourmaline crystal with a purple lower half and a vivid cranberry red at the termination. Complete and undamaged. Weighs 3.3 grams.

R725 - Tourmaline sold

PKS Mine, Cruzeiro Mtn., Minas Gerais, Brazil
Thumbnail - 3.0 x 2 x 2 cm

(click on an image to enlarge)

Well terminated single Tourmaline crystal with a classic 'lipstick' color scheme of red over green, with a highly transparent purple at the base. Complete and undamaged. Weighs 2.05 grams.

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