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R347 - Amethyst with Prehnite, Calcite $ 3000 (=~ £ 2399) Goboboseb Mtns., Erongo Region, Namibia cabinet - 9.5 x 7 x 5.5 cm
Two larger Quartz crystals set with colorless rhombs of Calcite and a cluster of vivid green Prehnite. A gorgeous combo specimen from this prolific locality which typically produces single crystals. The main crystal is 6.5cm tall and has both smokey and amethyst coloration. The Quartz and Prehnite are undamaged.
R348 - Hematite with Quartz $ 350 (=~ £ 280) Veta Grande claim, Dome Rock Mtns., La Paz Co., Arizona, USA small cabinet - 5.2 x 3.5 x 3.5 cm
Old Arizona classic of bright metallic Hematite crystals standing up on edge amongst a Quartz crystals. The Hematite crystals reach 1cm in size and are undamaged.
R349 - Azurite on Malachite $ 275 (=~ £ 220) La Sal, San Juan Co., Utah, USA small cabinet - 5.5 x 4 x 3.0 cm
Deep blue crystals of Azurite in a vug lined with velvety green Malachite. Beautiful specimen of a different style than the typical floater rosette formations seen from the locality.
R350 - Calcite $ 150 (=~ £ 120) SOLD Rodeo, Chihuahua, Mexico miniature - 5 x 4.5 x 3 cm
Complete single rhomb of translucent to transparent, colorless Calcite. Has flattened faces on two opposing sides. Comes with a couple old labels (one calling this 'basal plate' Calcite).
R351 - Hematite $ 200 (=~ £ 160) Hormuz Island, Qeshm, Hormozgan, Iran thumbnail - 1.2 x 1.0 x 1.0 cm
Single, stout hexagonal prism of Hematite, an uncommon crystal form for Hematite that reminds me of a style rarely seen in Kalahari Hematite crytals. Doubly-terminated crystal silvery in color with bright metallic luster. Complete and undamaged with uniform shape though with a bit of cavernous growth and contact on part of one face. These are found in an iron mine on an island located 8 kilometers off the coast of Iran.
R352 - Sphene $ 300 (=~ £ 240) Capelinha, Minas Gerais, Brazil miniature - 3.7 x 2 x 0.7 cm
Complete single Sphene (Titanite) crystal from old finds in Brazil. Bright lime green color, translucent to transparent, with complex growth formations on one side. Very minor edge chips, otherwise undamaged.
R354 - Silver on Acanthite $ 2000 (=~ £ 1599) SOLD Imiter mine, Draa-Tafilalet Region, Morocco miniature - 3.5 x 3.0 x 2.0 cm
Thick, ropey Silver wires on dark metallic Acanthite crystals. While there have been plentiful man-made Silver on Acanthite specimens (made by heating Acanthite crystals to produce bright, lustrous Silver wires in hair-like masses grown out of the Acanthite), specimens with natural Silver wires are uncommon. Acquired at the Tucson show in the early 2000s from the original finds, I was only able to find a select few after sorting through hundreds of specimens. This was the best one I was able to acquire.
R355 - Rhodonite $ 200 (=~ £ 160) SOLD Franklin, Sussex Co., New Jersey, USA small cabinet - 5.5 x 4.5 x 4.5 cm
Pink Rhodonite crystals with associated black Franklinite and white Calcite. The main crystal on front is 3cm in size.
R357 - Quartz over Calcite $ 160 (=~ £ 128) San Martin Mine, Zacatecas, Mexico miniature - 4.3 x 4 x 2.5 cm
Cluster of tall Calcite crystals covered by drusy Quartz. The Calcite are golden and formed in 2 growth stages.
R358 - Topaz $ 225 (=~ £ 180) SOLD Tepatate, San Luis Potosi, Mexico thumbnail - 3.1 x 2.3 x 2.0 cm
Glassy, gem quality Topaz crystals on Rhyolite matrix. Fine and undamaged and I love the two small crystals sticking out sideways at the base.
R359 - Copper $ 250 (=~ £ 200) SOLD Centenial #2 Mine, Houghton Co., Michigan, USA thumbnail - 3 x 2 x 1 cm
Sharply formed Copper crystals in white Calcite on a small amount of rock matrix. Individual crystals to 8mm in size.
R361 - Malachite after Azurite $ 200 (=~ £ 160) Sacramento Mine, Bisbee, Cochise Co., Arizona, USA thumbnail - 2.8 x 1.2 x 0.5 cm
Fine single crystal of the pseudomorph of Malachite after Azurite. Well formed, complete and undamaged. ©2010-2018 Marin Mineral |