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M688 - Copper $ 150 Quincy Mine, Houghton Co., Michigan, USA miniature - 3.3 x 2.5 x 1.8 cm ![]() ![]() ![]() ![]() ![]() Well formed, quality Copper crystals with a rich patina. Crystals on the right 'arm' are particularly sharp.
K913 - Azurite $ 120 Milpillas Mine, Cuitaca, Sonora, Mexico thumbnail - 1.8 x 1.8 x 1.1 cm ![]() ![]() ![]() Undamaged single crystal of Azurite that exhibits areas of bright 'electric' blue color. A floater, complete all around crystal from the watercourse pocket. Undamaged and perfect.
M765 - Pyrite, quartz on Sphalerite $ 450 Huaron, Peru cabinet - 10 x 10 x 6 cm ![]() ![]() ![]() ![]() ![]() ![]() Clusters of Pyrite cubes and Quartz crystals atop a matrix of solid crystalline Sphalerite. Aesthetic large specimen from the Tom Ellis collection.
M767 - Halloysite in Quartz $ 650 Cabiche, Boyacá Department, Colombia cabinet - 11.5 x 10 x 6.5 cm ![]() ![]() ![]() ![]() ![]() Cluster of diverging Quartz crystals. The yellow tips are caused by inclusions of Halloysite.
M768 - Brazilianite with Quartz $ 600 Corrego Frio, Minas Gerais, Brazil small cabinet - 7 x 6 x 4 cm ![]() ![]() ![]() ![]() Large single crystal from the original finds in Brazil with attached Quartz crystals. Large, glassy faces on the front with mostly cleavages and contacts on the backside.
M785 - Arsenopyrite with Calcite, Muscovite $ 350 Yaogangxian Mine, Hunan, China miniature - 3.5 x 2.7 x 1.8 cm ![]() ![]() ![]() ![]() ![]() ![]() Fine quality single Arsenopyrite crystal with another smaller crystal sticking out the front face. Well terminated bright crystals with the backside covered by wafer-like Calcite crystals.
M784 - Acanthite $ 200 Imiter Mine, Ouarzazate Prov., Morocco miniature - 3.8 x 3 x 1.5 cm ![]() ![]() ![]() ![]() Serpent-like cluster of interconnected octahedral Acanthite crystals. Complete all around and undamaged.
M483 - Copper $ 450 Ajo, Pima Co., Arizona, USA cabinet - 13 x 8 x 3.5 cm ![]() ![]() ![]() ![]() ![]() ![]() Large, heavy mass of Copper crystals. Individual crystals reach 1.5cm in size.
M761 - Prehnite after Anhydrite $ 240 Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA small cabinet - 6 x 6 x 2.5 cm ![]() ![]() ![]() ![]() Translucent apple green Prehnite cast that formed over a flat, tabular Anhydrite that then dissolved away leaving this hollow cast. Botryoidal, translucent Prehnite forms over the front and back with the shape of the former Anhyrite easily seen when looking up from the opening in the bottom. A wonderful example from long ago, and not as jumbled as some larger pieces are - this is a nice distinct cast of a single large crystal.
M598 - Rhodochrosite with Fluorite $ 600 Sunnyside Mine, Silverton, San Juan Co. Colorado, USA small cabinet - 7.5 x 6 x 4.5 cm ![]() ![]() ![]() ![]() Pale blueish green Fluorite crystals with pink Rhodochrosite from a classic Colorado locality, on a Quartz and sulfide rich matrix.
M511 - Copper $ 400 Keweenaw Peninsula, Michigan, USA cabinet - 15 x 9 x 7.5 cm ![]() ![]() ![]() ![]() ![]() Large hackly mass of Copper from the famous Copper mining area of Michigan. Weighs about 2.5 pounds. The nice thing about this piece, besides it's size, is that alot of the weight is towards the bottom and it stands up on it's own perfectly for display and is very stable.
M832 - Chalcoalumite $ 220 Grandview Mine, Grand Canyon, Coconino Co., Arizona, USA miniature - 5 x 3.5 x 2.5 cm ![]() ![]() ![]() ![]() Bright Robin's egg blue Chalcoalumite covering matrix. These specimens are very hard to come by now as the locality is now part of a national park. This old copper mine began operation in 1892, stopped operation around 1907, and became a part of the national park in 1940. The specimen is likely over 100 years old! From an old collection and comes mounted in a plastic box.
M862 - Ilvaite $ 350 Huanggang Mine, Inner Mongolia, China small cabinet - 6.5 x 4.5 x 4 cm ![]() ![]() ![]() ![]() Cluster of thick, glossy black Ilvaite crystals with a few small green Quartz crystals attached. Complete all around.
M870 - Ilvaite $ 350 Huanggang Mine, Inner Mongolia, China miniature - 4.5 x 4 x 3.5 cm ![]() ![]() ![]() ![]() ![]() Cluster of thick, glossy black Ilvaite crystals with typical chisel-shaped termination. There are a few small green Quartz crystals and Hedenbergite attached. Complete all around.
M872 - Ilvaite $ 650 Huanggang Mine, Inner Mongolia, China small cabinet - 6 x 5 x 4.5 cm ![]() ![]() ![]() ![]() ![]() Cluster of thick, glossy black Ilvaite crystals with wide chisel-shaped terminations. Complete all around.
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