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ST285 - Kolwezite on Cobaltian Calcite $ 300 Kolwezi Mining District, Lualaba, DR Congo cabinet - 10.5 x 10 x 2 cm ![]() ![]() ![]() ![]() Dark olive green botryoidal Kolwezite atop vivid pink Cobaltoan Calcite (or possibly Cobaltoan Dolomite) creating a stunning mixture of colors and forms. Kolwezite is a Copper Cobalt Carbonate Hydroxide and this is the type locality for the species. A beautiful large display piece and combination specimen of two desireable species together. Sawcut on back and one edge.
ST269 - Kolwezite/Malachite Pseudomorphs $ 250 Kolwezi Mining District, Lualaba, DR Congo small cabinet - 9 x 6 x 4.5 cm ![]() ![]() ![]() ![]() Dark green crystals of Kolwezite and/or Malachite that has pseudomorphed after Barite (?) on Cobaltian Calcite. The pseudomorphs form a cluster about 4cm wide in a vug. The Cobaltian Calcite is brown with an later generation of vivid pink. Kolwezite is a Copper Cobalt Carbonate Hydroxide and this is the type locality for the species. private_notes
ST238 - Kolwezite after Cuprite on Cobaltian Calcite $ 900 Kolwezi Mining District, Lualaba, DR Congo cabinet - 14.5 x 9 x 3 cm ![]() ![]() ![]() ![]() ![]() Dark olive green Kolwezite pseudomorphs after Cuprite atop rhombs of pink Cobaltoan Calcite (or possibly Cobaltoan Dolomite) creating a stunning mixture of colors and forms. There are a few clusters of an earlier generation of botryoidal Kolwezite but the majority are angular crystals of the pseudomorphs. Kolwezite is a Copper Cobalt Carbonate Hydroxide and this is the type locality for the species. A beautiful large display piece and combination specimen of two desireable species together.
ST265 - Cuprite on Malachite with Chrysocolla $ 450 Kolwezi Mining District, Lualaba, DR Congo cabinet - 11 x 7.5 x 5 cm ![]() ![]() ![]() ![]() ![]() Large fan-shaped cluster of velvety green Malachite atop a matrix of fibrous Malachite intergrown with blue Chrysocolla. There are 5 crystals of octahedral Cuprite attached to the fan-shaped formation of Malachite. Unusual and colorful.
ST172 - Datolite $ 150 Russian River, north of Cloverdale, Mendocino Co., California, USA small cabinet - 7 x 4 x 4 cm ![]() ![]() ![]() Glassy white Datolite crystals on matrix. Found by a friend while prospecting in this area known for Jadeite and Rosenhahnite crystals. These were found in a single boulder that was excavated during construction work on Highway 101. This boulder produced what are considered Californias's best Datolite. Individual crystals on this specimen reach 7mm in size and are translucent to transparent. Superb piece for a California suite of minerals.
ST360 - Tourmaline $ 1800 St. Anne's Mine, Miami, Karoi District, Zimbabwe small cabinet - 6.5 x 4.5 x 3 cm ![]() ![]() ![]() ![]() ![]() Large, dark green single Tourmaline crystal from recent production at this famous mine in Zimbabwe. Tourmaline has been very rare from this mine historically, which has primarily targeted blue Topaz. Most Tourmaline found here occur as small pencil-like crystals and this fat, somewhat tabular crystal in an anomaly. Though dark, it is transparent facet grade throughout with a more greenish brown at the upper third and a bright pure green in the lower two thirds. There is a bit of edge chipping along the sides, it's complete all around, and has a perfect termination. Weighs a hefty 153 grams.
ST118 - Tourmaline $ 60 St. Anne's Mine, Miami, Karoi District, Zimbabwe miniature - 3.5 x 0.3 x 0.3 cm ![]() ![]() ![]() Gem Tourmaline crystal recently mined from the famous St. Anne's Mine in the Karoi district of Zimbabwe. Fully terminated, complete, and undamaged. It's transparent top to bottom with a good medium green color over most of the crystal with a darker green (though still transparent) termination. The termination is multi-faceted and complex. Excellent quality Tourmaline.
ST359 - Zircon $ 900 Rweko, Nkasi District, Rukwa Region, Tanzania miniature - 4.5 x 1.8 x 1.5 cm ![]() ![]() ![]() ![]() ![]() Large, deep red complete Zircon crystal from Tanzania, much larger than typical for this locality. It has a steep pyramidal termination and is nicely transparent when backlit.
ST381 - Azurite $ 600 Milpillas Mine, Cuitaca, Sonora, Mexico miniature - 3.2 x 3 x 2.5 cm ![]() ![]() ![]() ![]() A 2.8cm double-terminated Azurite crystal sits perfectly for display atop a small amount of matrix. Complete and undamaged with glassy faces all around and a few smaller crystal scattered around the base. Excellent miniature.
M887 - Ilvaite $ 200 Huanggang Mine, Inner Mongolia, China miniature - 4.5 x 3.5 x 3.5 cm ![]() ![]() ![]() ![]() ![]() Large, thick glossy black Ilvaite crystal, complete all around and undamaged. These new Huanggang Ilvaites are superb and easily some of the world's best for species.
LL660 - Clinoclase on Cornubite Copper Stope, Majuba Hill Mine, Pershing Co., Nevada, USA small cabinet - 5.5 x 3.5 x 3 cm ![]() ![]() ![]() Deep blue crystals of Clinoclase over green Cornubite from the now defunct Majuba Hill Mine. Both the front and back and 1 side have great crystals.
LL684 - Chalcophyllite $ 120 Copper Stope, Majuba Hill Mine, Pershing Co., Nevada, USA miniature - 4 x 2.5 x 1.5 cm ![]() ![]() ![]() Rich coverage of platy blue/green crystals of Chalcophyllite on matrix. Specimens of Chalcophyllite are some of the most sought after from this mine.
ST372 - Kolwezite/Malachite on Cobaltian Calcite $ 250 Kolwezi Mining District, Lualaba, DR Congo cabinet - 11 x 6 x 2 cm ![]() ![]() ![]() ![]() Dark green crystal groups of Malachite or Kolwezite atop deep red Cobaltoan Calcite (or possibly Cobaltoan Dolomite) creating a stunning mixture of colors and forms. Kolwezite is a Copper Cobalt Carbonate Hydroxide and this is the type locality for the species. A beautiful, colorful display piece. Sawcut on back.
ST186 - Kolwezite after Cuprite on Cobaltian Calcite $ 480 Kolwezi Mining District, Lualaba, DR Congo small cabinet - 8.5 x 7 x 5 cm ![]() ![]() Angular yellowish green crystals of Kolwezite pseudomorphs after Cuprite on velvety, botryoidal pink Cobaltoan Calcite. A beautiful and colorful combination specimen.
ST370 - Kolwezite after Cuprite on Cobaltian Calcite $ 350 Kolwezi Mining District, Lualaba, DR Congo small cabinet - 7.5 x 6 x 2 cm ![]() ![]() ![]() Angular deep green crystals of Kolwezite pseudomorphs after Cuprite on crystals of reddish pink Cobaltoan Calcite. A beautiful and colorful combination specimen. Sawcut on back.
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