Marin Mineral
Tucson 2020 - Mixed Minerals
February 23, 2020  ·  21 specimens

M696 - Fluorite  sold

La Viesca Mine,, La Collada, Asturias, Spain
Small Cabinet - 7.5 x 4.8 x 3.6 cm



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Fluorite Fluorite Fluorite Fluorite Fluorite

Blue and purple color-zoned Fluorite. Beautiful color with good luster and stepped faces. Translucent to transparent. High quality Spanish Fluorite such as this rivals Illinois Fluorite but for a fraction of the cost.


M698 - Fluorite  sold

La Viesca Mine,, La Collada, Asturias, Spain
Small Cabinet - 8 x 6.5 x 5 cm



(click on an image to enlarge)

Fluorite Fluorite Fluorite Fluorite

Blue and purple color-zoned Fluorite. Beautiful color with good luster and stepped faces. Translucent to transparent. High quality Spanish Fluorite such as this rivals Illinois Fluorite but for a fraction of the cost.


M693 - Kesterite, Cassiterite on Muscovite  sold

Mt. Xuebaodig, Pinwu Co., Sichuan, China
Small Cabinet - 7.5 x 5.5 x 3 cm



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Kesterite, Cassiterite on Muscovite Kesterite, Cassiterite on Muscovite Kesterite, Cassiterite on Muscovite

A 1.4cm wide group of Kesterite, lustrous black Cassiterites to 2.8cm on blades of Muscovite. Undamaged.


M658 - Cuprite on Copper after Cuprite  sold

Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
Thumbnail - 2.7 x 2.3 x 2 cm



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Cuprite on Copper after Cuprite Cuprite on Copper after Cuprite Cuprite on Copper after Cuprite Cuprite on Copper after Cuprite Cuprite on Copper after Cuprite

Octahedral crystals of Copper psuedomorphs after Cuprite with attached crystals of Cuprite. The largest psuedomorph is 1.8cm and the largest Cuprite is 1.3cm. There have been lots of the pseudormorphs and lots of the Cuprite crystals, not not many specimen with both together like this one.


M657 - Gold with Hessite, Tennantite, Tetrahedrite  sold

Cash Mine, Gold Hill, Boulder Co., Colorado, USA
Thumbnail - 2.4 x 2.2 x 0.4 cm



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Gold with Hessite, Tennantite, Tetrahedrite Gold with Hessite, Tennantite, Tetrahedrite Gold with Hessite, Tennantite, Tetrahedrite Gold with Hessite, Tennantite, Tetrahedrite

Small slab of ore consisting of Hessite, Tennantite, and Tetrahedrite with a vein of solid Gold running through and visible on both sides. Polished on front and back.


M652 - Bastnasite  sold

Zagi Mountain, Peshawar, Pakistan
Miniature - 3.3 x 2.4 x 1.9 cm



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Bastnasite Bastnasite Bastnasite Bastnasite Bastnasite

This is a fantastic Bastnasite specimen featuring a thick, 2.5cm main crystal as part of a complete floater group crystallized all around. The crystals have good transparency and color (not too dark). Needle-like inclusions are present.


M653 - Fluorite  sold

Okorusu Mine, Ojiwarongo, Namibia
Miniature - 5 x 4.8 x 4.5 cm



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Fluorite Fluorite Fluorite Fluorite

Cluster of transparent green cubic Fluorite crystals from Okorusu. Outstanding rich green color but the best part is the thin blue phantom near the edges. A real beauty.


M654 - Analcime on Quartz  sold

Goboboseb Mtns., Brandberg area, Namibia
Small Cabinet - 6.9 x 1.8 x 1.4 cm



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Analcime on Quartz Analcime on Quartz Analcime on Quartz Analcime on Quartz Analcime on Quartz

Double-terminated Quartz crystal with attached crystals of Analcime. The largest Analcime is 6mm. Amethyst coloration in one end. Glassy and undamaged quality crystal.


M655 - Azurite with Cuprian Adamite (Zincian Olivenite)  sold

Tsumeb, Namibia
Miniature - 4 x 3.5 x 3 cm



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Azurite with Cuprian Adamite (Zincian Olivenite) Azurite with Cuprian Adamite (Zincian Olivenite) Azurite with Cuprian Adamite (Zincian Olivenite) Azurite with Cuprian Adamite (Zincian Olivenite)

Azurite crystals in a vug in matrix covered by green crystals of (formerly) Cuprian Adamite, now known as Zincian Olivenite.


M689 - Aquamarine  sold

Gosalak Mine, Darra Pech, Kunar, Afghanistan
Miniature - 3.5 x 3 x 2.5 cm



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Aquamarine Aquamarine Aquamarine Aquamarine

Two tabular Aquamarine crystals on Albite. The Aqua crystals are glassy and transparent, 2.5 and 2cm in size. Better than photos.


M683 - Tourmaline  sold

Barra de Salina, Minas Gerais, Brazil
Thumbnail - 1.6 x 0.8 x 0.8 cm



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Tourmaline Tourmaline Tourmaline

Gem quality transparent green Tourmaline crystal. Complete and undamaged. Weighs 2.4 grams.


M690 - Topaz  sold

Ouro Preto, Minas Gerais, Brazil
Thumbnail - 1.3 x 0.5 x 0.3 cm



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Topaz Topaz Topaz Topaz

Ten crystals of Imperial Topaz. Though small, they are high quality transparent crystals. All are terminated and undamaged or relatively undamaged.


M684 - Ruby  sold

Guinea
Thumbnail - 2 x 0.7 x 0.6 cm



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Ruby Ruby Ruby

Complete double-terminated Ruby crystal. Nicely translucent throughout it's entire length.


M685 - Ruby  sold

Guinea
Thumbnail - 2.8 x 1.2 x 1 cm



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Ruby Ruby Ruby

Complete double-terminated Ruby crystal. Nicely translucent throughout it's entire length.


M686 - Ruby  sold

Guinea
Thumbnail - 2.9 x 0.9 x 0.9 cm



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Ruby Ruby Ruby

Complete double-terminated Ruby crystal. Nicely translucent throughout it's entire length.


M682 - Cobaltite  sold

Tunaberg, Nykoping, Sodermanland, Sweden
Thumbnail - 1.3 x 1 x 1 cm



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Cobaltite Cobaltite Cobaltite

Complete single Cobaltite crystal from the classic Swedish locality. Smooth, bright metallic faces all over with just a bit of minor edge chips. Ex. Rock Currier collection and still has his yellow doughnut-shaped specimen number attached to the crystal by a piece of thread.


TR107 - Diamond  sold

Sierra Leone
Thumbnail - 1 x 1 x 1 cm



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Diamond Diamond Diamond

Complete single octahedral Diamond crystal. Undamaged with slightly modified edges and great glossy luster. There are some internal imperfections that saved it from being cut, but there are also large transparent zones. More colorless inside with light brownish color along the outer crystal edges. This is an old crystal that has been hoarded away for decades on offered here for the first time. Weighs 5.05 carats.


M692 - Quartz Gwindel  sold

Shalman, Khyber Agency, Pakistan
Small Cabinet - 8.5 x 3.8 x 2.5 cm



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Quartz Gwindel Quartz Gwindel Quartz Gwindel Quartz Gwindel

Tall, glassy Quartz gwindel. Slightly smokey in color, this is perhaps the best Paki gwindel I've seen, certainly the best I've owned. They don't turn up very often, and this is the only one I saw at the 2020 Tucson show. Tall, twisting form, it's undamaged and must have detached naturally from the pocket wall as the bottom is slightly rehealed.


M687 - Gold in Quartz  sold

Empire Mine, Grass Valley, Nevada Co., California, USA
Small Cabinet - 9 x 4 x 2.5 cm



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Gold in Quartz Gold in Quartz Gold in Quartz

Gold (along with Pyrite and Galena) in Quartz from the Empire Gold Mine. The Empire Mine is one of the oldest, largest, and richest gold mines in California. Between 1850 and its closure in 1956, the Empire Mine produced 5.8 million ounces of gold, extracted from 367 miles of underground passages. It is now a California State historic park. Specimen is sawcut on one side.


K452 - Prehnite  sold

Merelani Hills, Arusha, Tanzania
Small Cabinet - 5.3 x 5 x 3.5 cm



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Prehnite Prehnite Prehnite Prehnite Prehnite

Superb bladed crystal group of Prehnite, yellow with a hint of the blue/green color characteristic of the 2019 finds. The front area showed blades of crystals surrounding an inner spherical group of Prehnite and the back shows parallel rows of bladed crystals.


M695 - Galena  sold

9th of September Mine, Madan, Bulgaria
Miniature - 4.5 x 3.3 x 2.8 cm



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Galena Galena Galena Galena Galena

Skeletal Galena from a find last year at the 9th of September Mine. This is true skeletal Galena (not the manufactured specimens from about 10 years ago), and only the second time in 20 years that they have been found. Main crystal is a superb, cavernous crystal 2cm tall. Undamaged.


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