Marin Mineral
Mixed Minerals
May 6, 2023  ·  21 specimens

AU103 - Tetrahedrite   $750  available

Casapalca Mine, Huarochiri Province, Lima, Peru
Cabinet - 15 x 15 x 6.5 cm



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Tetrahedrite Tetrahedrite Tetrahedrite Tetrahedrite Tetrahedrite

Large specimen of lustrous metallic Tetrahedrite crystals atop a Pyrite and Sphalerite matrix. Casapalca Tetrahedrite are Peruvian classics and well known as some of the best in the world. This is a large showy example associated with clear Quartz crystals and has Tetrahedrite crystals to 2.3cm in size.


AU366 - Rutile  sold

Diamantina, Minas Gerais, Brazil
Thumbnail - 2.3 x 1 x 0.7 cm



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Rutile Rutile Rutile Rutile

Cluster of doubly-terminated and twinned Rutile crystals from Brazil. The main crystal is doubly-terminated with a twin crystal attached to the side. The crystals are complete all around and undamaged. Backlighting reveals the crystals to be fully transparent with a red to gold coloration.


AU367 - Smithsonite with Willemite  sold

Berg Aukus Mine, Grootfontein, Namibia
Miniature - 4.2 x 3 x 1.8 cm



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Smithsonite with Willemite Smithsonite with Willemite Smithsonite with Willemite Smithsonite with Willemite

Satiny, translucent yellow Smithsonite with micro Willemite. Lesser known than Tsumeb, this mine produced some great Smithsonite specimens. The Smithsonite is highly translucent and you can see straight through to the matrix in areas. Ex. Wolfgang Pohl collection with label.


AU368 - Opal after Clam  sold

Coober Pedy, South Australia, Australia
Miniature - 4.2 x 3.3 x 1.2 cm



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Opal after Clam Opal after Clam Opal after Clam Opal after Clam

Precious Opal that has replaced a fossil clam shell from the famous Coober Pedy opal fields in Australia. Most of these are uniform in shape and polished smooth, looking more like Opal that has filled casts after fossil clams. This one retains all the features of the clam including the hinge area and the back shows all the ridges and striations of the former shell surface. The top side is lightly polished and shows bright reds, greens, gold, and purple colorization. I purchased this one from a jewelry store in Chinatown, San Francisco about 25 years ago from the owner who was reluctant to sell. This is a rare, complete specimen translucent when backlit.


AU369 - Dravite   $600  available

Mwajanga, near Komolo, Tanzania
Small Cabinet - 6.3 x 1 x 0.7 cm



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Dravite Dravite

Tall, slender gem Dravite crystal from Mwajanga. Well terminated, complete and undamaged single crystal that displays a slight bend from fracturing and rehealing during growth. Transparent with a golden brown coloration. I only backlit the termination area, but it is transparent top to bottom.

AU370 - Magnetite with Clinochlore  sold

Karzemkkul deposit, Kostanay Region, Kazakhstan
Miniature - 5 x 4.5 x 2.5 cm



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Magnetite with Clinochlore Magnetite with Clinochlore Magnetite with Clinochlore

Formations of shiny black Magnetite crystals with green flower-like crystal groups of Clinochlore from an obscure deposit in Kazakhstan. This was easily the most aesthetic example I selected from a few flats of this material available at the Tucson show back in the 1990s.


AU371 - Adamite  sold

Mina Oujela, Mapimi, Durango, Mexico
Miniature - 3.2 x 3 x 2 cm



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Adamite Adamite Adamite Adamite

Glassy Adamite crystals on Limonite. There are both individual crystals, doubly-terminated crystals, and a large pinwheel cluster. What makes this special is the more green than yellow color and the aesthetic arrangement of the crystals. Undamaged fine miniature.


AU372 - Spessartine  sold

Navegador Mine, Minas Gerais, Brazil
Miniature - 3.7 x 2.8 x 1.8 cm



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Spessartine Spessartine Spessartine Spessartine

Transparent red Spessartine crystal with the crazy geometric growth formations these are known for. Fine undamaged example that is complete and well crystallized all around.


AU373 - Smithsonite with Hemimorphite  sold

Level 8, San Antonio Mine, Santa Eulalia, Chihuahua, Mexico
Miniature - 3.5 x 3 x 2 cm



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Smithsonite with Hemimorphite Smithsonite with Hemimorphite Smithsonite with Hemimorphite Smithsonite with Hemimorphite

Satiny, globular blue/green Smithsonite on matrix with sparkling Hemimorphite crystals. Well isolated, highly translucent Smithsonite.


AU374 - Grossular  sold

Jeffrey Mine, Asbestos, Quebec, Canada
Miniature - 3.9 x 2.7 x 1.5 cm



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Grossular Grossular Grossular

Glassy pink Grossular crystals to 8mm in size on matrix. Beautiful transparent crystals with pure pink coloration.


AU375 - Axinite   $400  available

Puiva, Berezovo district, Ural Mountains, Russia
Miniature - 4.2 x 3 x 2 cm



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Axinite Axinite Axinite

Sharp, transparent Axinite crystals to 2.9cm on white matrix. This locality produced what are easily some of the world's very best Axinite crystals. Undamaged fine miniature.

AU376 - Ludlamite  sold

Blackbird Mine, Lemhi Co., Idaho, USA
Miniature - 3.5 x 3.5 x 1.5 cm



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Ludlamite Ludlamite Ludlamite Ludlamite

Aesthetic cluster of well crystallized Ludlamite from the historic Blackbird Mine in Idaho. These are the USA's best Ludlamite and hard to find classics. This specimen has translucent to transparent crystals to 1.4cm in size.


AU305 - Galena on Pyrhottite   $950  available

Nikolaevskiy Mine, Dalnegorsk, Primorsky Krai, Russia
Cabinet - 9.5 x 7 x 3.5 cm



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Galena on Pyrhottite Galena on Pyrhottite Galena on Pyrhottite Galena on Pyrhottite

Silvery metallic spinel-twinned Galena crystal perched aesthetically atop a brassy Pyrhottite crystal.


AU307 - Chrysoberyl  sold

Colatina, Espirito Santo, Brazil
Thumbnail - 3 x 1.4 x 0.7 cm



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Chrysoberyl Chrysoberyl Chrysoberyl Chrysoberyl

Rare gem Chrysoberyl crystal from Espirito Santo (possibly Santa Teresa though old label says Colatina) that does not have the typical sixling twinning. This crystal has smooth, sharp, well-formed faces all around and a greenish-yellow, golden coloration. Undamaged and gemmy top to bottom.


AU311 - Chlorite in Quartz   $200  available

Balochistan, Pakistan
Small Cabinet - 5.5 x 2 x 1 cm



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Chlorite in Quartz Chlorite in Quartz Chlorite in Quartz Chlorite in Quartz

Doubly-terminated transparent Quartz crystals with inclusions of green Chlorite. Complete all around floater.

AU312 - Fluorite on Arsenopyrite   $1,500  available

Yaogangxian Mine, Hunan, China
Small Cabinet - 6 x 4.5 x 3 cm



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Fluorite on Arsenopyrite Fluorite on Arsenopyrite Fluorite on Arsenopyrite

A mound of Muscovite with a large doubly-terminated Arsenopyrite crystal 3.5cm wide perched on top, all of which are coated by a layer of sparkling purple Fluorite. There are metallic needles of Jamesonite and and small clear Quartz crystals associated. Complete all around and undamaged. Rare Yaogangxian specimen!

AU313 - Adamite   $1,250  available

Mina Oujela, Mapimi, Durango, Mexico
Miniature - 4.5 x 4 x 2 cm



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Adamite Adamite Adamite

Cluster of solid Adamite crystals with a well saturated yellow color. Undamaged and without matrix.

AU314 - Smokey Quartz   $500  available

Mt. Mulanje, Mulanje District, Southern Region, Malawi
Small Cabinet - 5.2 x 2.5 x 2 cm



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Smokey Quartz Smokey Quartz Smokey Quartz Smokey Quartz

Transparent single Smokey Quartz crystal from Mt. Mulanje. Highly transparent crystal showing Dauphine twinning. This was the best in this size range from one of only a couple small lots of this style I have ever seen. This has mostly glassy faces with some frosted faces and micro seration-like marks along the edges. Complete all around and undamaged.

AU315 - Malachite on Cuprite   $1,600  available

Emke Mine, Onganja, Namibia
Thumbnail - 2.7 x 2.2 x 2.2 cm



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Malachite on Cuprite Malachite on Cuprite Malachite on Cuprite Malachite on Cuprite

Complete, perfect 2.2cm Cuprite crystal with atop a second complete Cuprite. The crystals have coatings of green Malachite typical for the locality and bevelled edges. Complete all around and undamaged floater.

MK674 - Peridot  sold

Sapat Gali, Kaghan Valley, Mansehra District, Pakistan
Thumbnail - 2.4 x 1.6 x 1.2 cm



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Peridot Peridot Peridot Peridot

Single Peridot crystal with exceptional bright green color, clarity, and sharp, smooth crystal faces. Some many Peridot crystals tend towards an olive green color and rounded rather that crisp edges. With the exception of two termination faces that are slightly less smooth, all the crystal faces are perfectly flat and lustrous. The color is a superb bright vivid green. A Peridot of rare quality which I have owned for 20 years or more. Better than photos!


MK682 - Peridot   $1,200  available

Sapat Gali, Kaghan Valley, Mansehra District, Pakistan
Thumbnail - 2.7 x 1.9 x 1.5 cm



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Peridot Peridot Peridot Peridot

Single Peridot crystal with bright green color, good clarity, and sharp, smooth crystal faces. So many Peridot crystals tend towards an olive green color and rounded rather that crisp edges. This crystal is far better than most with good color and smooth, flat crystal faces. Complete all around and undamaged. There are also included acicular crystals of Ludwigite on the back side. A Peridot of rare quality which I have owned for 20 years or more.


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