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AR56 - Diamond in Kimberlite $ 1800 SOLD Mir Pipe, Yakutia, Siberia, Russia thumbnail - 2.6 x 2.5 x 1.8 cm ![]() ![]() ![]() ![]() A 4mm transparent white Diamond crystal in a typical rounded Kimberlite matrix. These matrix pieces are very rare now (there never were many of the matrix pieces available). Comes with an old Al McGuinness label.
AR57 - Dioptase on Calcite $ 350 Tsumeb, Namibia miniature - 3.3 x 3 x 1.8 cm ![]() ![]() ![]() ![]() ![]() Dioptase crystals to 11mm on white Calcite crystals. Slight damage to the upper left crystal, otherwise undamaged specimen. Showy specimen with sharp terminated crystals which highlight the color contrast between the Dioptase and Calcite.
AR58 - Montmorillonite in Quartz $ 280 White Queen Mine, Pala, San Diego County, California small cabinet - 6.0 x 2.6 x 2.4 cm ![]() ![]() ![]() ![]() Double terminated Quartz crystal colored by inclusions of Montmorillonite (a type of clay). These unusual crystals are a byproduct of Tourmaline mining and were only found occasionally in some of the San Diego mines. Very sharply terminated, hollow in two areas, and highly lustrous crystal faces. This is a great example.
AR60 - Baryte on Fluorite $ 300 SOLD Cave in Rock, Hardin Co., Illinois small cabinet - 5.5 x 4.3 x 2.7 cm ![]() ![]() ![]() ![]() A beautiful combination of white Baryte crystal rosettes evenly distributed on dark purple cube-shaped Fluorite crystals over yellow Fluorite. The specimen is in superb condition with no damage to any of the main crystals of either species. An American classic specimen.
AR61 - Cassiterite $ 280 SOLD Ximeng, Yunnan Province, China thumbnail - 2.1 x 2.0 x 1.8 cm ![]() ![]() ![]() ![]() ![]() A gemmy, complex Cassiterite crystal with glassy faces and overall smoky black color. A small bit of white matrix remains on the bottom, otherwise a floater. Excellent Chinese specimen, slight edge chipping otherwise undamaged. Good transparency. Ex. Debbie Meng's Minerals.
AR62 - Azurite with Malachite pseudo after Azurite $ 270 Sir Dominic Mine, Flinders Range, South Australia small cabinet - 5.2 x 5.1 x 3.7 cm ![]() ![]() ![]() ![]() Blue Azurite crystals in the center of a crystal rosette with green Malachite pseudomorphs after Azurite in the outer portion of a cluster. Floater specimen of fan-shaped crystals of good quality. Excellent all around with no damage.
AR63 - Elbaite Tourmaline $ 200 Minas Gerais, Brazil miniature - 3.4 x 2.7 x 1.7 cm ![]() ![]() ![]() ![]() A multi-crystal group of green Elbaite Tourmaline crystals with minor Lepidolite on the side and a bit of white Albite matrix on the bottom. A couple of the small side crystals are incomplete, all the main crystals showing are perfectly terminated and undamaged. A very aesthetic specimen.
AR64 - Quartz with Fluorite and Chlorite $ 75 SOLD Panasqueira, Portugal small cabinet - 5.1 x 1.9 x 1.7 cm ![]() ![]() ![]() ![]() ![]() Terminated clear Quartz crystal with a light 'dusting' of small light green Chlorite balls and several light purple Fluorite crystals. The Fluorite crystal near the top is incomplete. Still an aesthetic combination of species from the locality. Ex. A. L. McGuinness Collection.
AR65 - Malachite on Cobaltian Calcite $ 350 SOLD Mupine Mine, Kolwezi Shaba, Congo (DRC) small cabinet - 5.2 x 3.5 x 1.8 cm ![]() ![]() ![]() ![]() A flat plate of pink color scalenohedral Cobaltian Calcite crystals are host to a botryoidal mound of fibrous green Malachite crystals. Damage to a few of the Calcite crystals but without it you could add another zero to the price, at least. These are rare and those with the visual pop added by the Malachite are very rare.
AR66 - Cobaltian Calcite $ 400 Mashamba West Mine, Katanga, Congo (DRC) miniature - 3.7 x 3.5 x 2.3 cm ![]() ![]() ![]() Rich pink color Cobaltian Calcite crystals to 15mm in size. Although there are a couple bruised crystals, this is a high quality Cobaltian Calcite with bright color and translucent to transparent crystals.
AR67 - Enargite $ 90 SOLD Butte, Butte District, Silver Bow County, Montana miniature - 3.3 x 2.3 x 1.6 cm ![]() ![]() ![]() ![]() A miniature size specimen of Enargite with several well-terminated silver-black crystals from Butte, Montana, known as 'The Richest Hill on Earth'. These mines have not produced for decades.
AR68 - Fluorite $ 280 SOLD Catron County, New Mexico, USA small cabinet - 5.7 x 3.6 x 3.3 cm ![]() ![]() ![]() Deep purple, satin finish octahedral Fluorite crystals are seen intermixed with an earlier generation of green Fluorite crystals. These are New Mexico classics and the shown here is an exceptional example with no damage to the main crystals. Largest purple octahedral crystal is 2.1cm on edge.
AR69 - Tourmaline $ 120 Minas Gerais, Brazil thumbnail - 1.4 x 1.2 x 1.1 cm ![]() ![]() ![]() Colorful single Tourmaline crystal with alternating shades of pink and blue-green. Highly transparent, terminated with slight edge chipping. Weighs 4.0 grams.
AR70 - Topaz $ 800 Minas Gerais, Brazil small cabinet - 6.0 x 4.5 x 3.5 cm ![]() ![]() ![]() ![]() ![]() ![]() Large glassy blue Topaz crystal complete all around with etched faces and water-clear transparency. The crystal detached in the pocket and is naturally etched all around. Weighs approximately 79 grams.
AR71 - Calcite with Duftite $ 500 Tsumeb, Namibia small cabinet - 8.6 x 6.2 x 3.2 cm ![]() ![]() ![]() ![]() A plate of thin, dark color matrix hosts a cluster of clear, sharply terminated rhombohedral Calcite crystals and a small amount of green Duftite. An older Tsumeb classic with no damage to the Calcite crystals. Ex. Collection of Tom and Gale Parker. Excellent Tsumeb Calcite specimen.
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