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ST759 - Natrolite Mwanjanga, Manyara Region, Tanzania small cabinet - 6.2 x 0.3 x 0.3 cm ![]() ![]() ![]() Long translucent to transparent single Natrolite crystal. Perfectly terminated and complete and undamaged. From recent, limited production, these new Natrolites are exceptional for the species for their sharpness and transparency.
ST763 - Natrolite $ 250 Mwanjanga, Manyara Region, Tanzania miniature - 5 x 0.4 x 0.4 cm ![]() ![]() ![]() Long, transparent single Natrolite crystal. Perfectly terminated and complete and undamaged. From recent, limited production, these new Natrolites are exceptional for the species for their sharpness and transparency.
ST797 - Botallackite $ 325 Cligga Head, Perranzabuloe, Cornwall, England small cabinet - 8 x 4 x 3 cm ![]() ![]() ![]() ![]() Bright blue/green crystals of Botallackite on all sides of specimen. Botallackite is a rare secondary copper mineral and this is a very rich example from recent finds at Cligga Head.
ST772 - Calaverite with Quartz $ 1500 Cripple Creek, Teller Co., Colorado, USA small cabinet - 5.5 x 4.5 x 3.5 cm ![]() ![]() ![]() ![]() ![]() Crystals of Calaverite, a rare Gold Telluride mineral, intergrown with Quartz. There are also areas of exposed Calaverite in the matrix.
ST780 - Euclase $ 750 Ouro Preto, Minas Gerais, Brazil thumbnail - 2.5 x 1.5 x 1 cm ![]() ![]() ![]() ![]() ![]() Transparent, colorless single Euclase crystal from Brazil. It's a complete and undamaged crystal though there is a bit of Muscovite and Feldspar attached to the back termination. Uncommon gem crystal.
ST809 - Tennantite after Azurite $ 380 Tsumeb, Namibia small cabinet - 6 x 4 x 2 cm ![]() ![]() ![]() ![]() ![]() Crystal cluster of Tennanite after Azurite from Tsumeb. Elongated, primatic crystals of former Azurite that have been pseudomorphed to Tennantite. An undamaged floater cluster with individual crystals to 4.5cm in length.
ST800 - Microlite on Lepidolite $ 280 Skardu, Pakistan small cabinet - 7 x 6 x 4.5 cm ![]() ![]() ![]() ![]() Golden yellow Microlite crystals on Lepidolite. The Microlite form cubotahedral crystals to 5mm in size. I count 15 crystals of Microlite on the specimen. Ex. Erich Laskowski collection.
ST803 - Aquamarine $ 380 Mt Xuebaoding, Ping Wu, Sichuan Prov., China small cabinet - 7.8 x 6.5 x 4 cm ![]() ![]() ![]() ![]() Gorgeous, glassy tabular Aquamarine crystals with Muscovite. Highly glassy and transparent crystals to 3cm wide. Ex. Erich Laskowski collection, an older specimen for the locality acquired in 1999.
ST711 - Andorite $ 180 Itos Vein, San Jose Mine, Oruro, Bolivia thumbnail - 2.5 x 1.6 x 0.8 cm ![]() ![]() ![]() Metallic grey, striated single Andorite crystal from the San Jose Mine in Bolivia. Associated minerals include yellow, crust-like Cervanite, micro crystals of Rhodostannite, and Zinkenite. Ex. Erich Laskowski collection.
ST709 - Spherocobaltite $ 125 Katanga, Congo miniature - 4.2 x 1.5 x 1 cm ![]() ![]() ![]() Well formed, deep purple/red crystals of Sperocobaltite that contrast well against the white matrix. Ex. Erich Laskowski collection.
ST775 - Silver $ 200 Aspen, Pitkin Co., Colorado, USA thumbnail - 1.2 x 0.8 x 0.4 cm ![]() ![]() ![]() ![]() Aesthetic, curving Silver wires from Aspen. Fine and uncommon thumbnail.
ST777 - Aquamarine $ 325 Mount Antero, Chaffee County, Colorado, USA thumbnail - 2.3 x 1.2 x 0.8 cm ![]() ![]() ![]() ![]() Complete single medium blue Aquamarine crystal from Mount Antero. Undamaged with a perfect termination and internally transparent and has some matrix intergrown into the back face.
ST795 - Malachite (chatoyant) Shilu Mine, Yangchun Co., Yangjiang Prefecture, Guangdong Province, China cabinet - 13 x 8 x 4 cm ![]() ![]() ![]() ![]() ![]() Botryoidal Malachite specimen from the Shilu Mine in China. This find produced Malachite with a wonderful velvety, chatoyant surface luster. The chatoyancy is very evident under bright lights or in direct sunlight, creating shimmering 'eyes' all over. It has bubbly botryoidal surfaces along the top with a lighter green, fibrous structure around the edges and all over the bottom. Undamaged and a good size for these (not too big, not too small).
ST785 - Rhodonite $ 650 Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazil thumbnail - 1.7 x 0.7 x 0.5 cm ![]() ![]() ![]() ![]() Single gem crystal of Rhodonite from recent finds in Brazil. This is a complete crystal with typical stepped termination growth and small raised crystal growths on some sides. There is a tiny edge chip, otherwise it's perfect and undamaged, and transparent internally. Superb color!
ST799 - Zanazziite, Eosphorite on Quartz $ 275 Lavra da Ilha Mine, Itinga, Minas Gerais, Brazil small cabinet - 6.5 x 5.5 x 4.5 cm ![]() ![]() ![]() ![]() ![]() Crystals of the rare phosphate minerals Zanazziite and Eosphorite on a large single Quartz crystal. Zanazziite is a hydrated calcium magnesium iron aluminum beryllium phosphate mineral and occurs as dark green prismatic single crystals to 2mm and rounded masses. Lavra da Ilha is the Type locality for this rare species. The Eosphorite occurs as splendid bladed brown crystals in radial clusters. Ex. Erich Laskowski collection, purchased by Erich in 1995.
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