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B894 - Dioptase on Calcite with Mottramite $ 350 Tsumeb, Namibia small cabinet - 7.5 x 5.5 x 5 cm ![]() ![]() ![]() Two Dioptase crystals to 1.1cm on white Calcite crystals with associated Mottramite. Ex. Carl Acosta collection.
B900 - Cerussite $ 180 Tsumeb, Namibia thumbnail - 2.2 x 1.3 x 1 cm ![]() ![]() ![]() ![]() Glassy reticulated Cerussite crystal. Transparent with high luster and undamaged. Ex Willy Isreal collection.
B904 - Azurite $ 300 Tsumeb, Namibia miniature - 4 x 1 x 1 cm ![]() ![]() ![]() ![]() Gem Azurite crystal that glows a bright blue when backlit. Ex Willy Isreal collection.
B906 - Cerussite $ 250 Tsumeb, Namibia miniature - 3.4 x 2.8 x 1.8 cm ![]() ![]() ![]() Glassy reticulated Cerussite crystal. Complete and undamaged. Ex Willy Isreal collection.
B907 - Cerussite with Mottramite $ 350 Tsumeb, Namibia miniature - 3.3 x 2.5 x 1.5 cm ![]() ![]() ![]() Snowflake Cerussite crystal with Mottramite. Complete and undamaged. Ex Willy Isreal collection.
B912 - Mottramite $ 290 Tsumeb, Namibia thumbnail - 2.6 x 2 x 1.8 cm ![]() ![]() ![]() Unusual, organic-looking globules of Mottramite with deep green color and a more yellow green on the top surfaces. Ex Willy Isreal collection.
B913 - Dioptase $ 650 Tsumeb, Namibia thumbnail - 2.5 x 2.5 x 2.5 cm ![]() ![]() ![]() ![]() Dense coverage of good sized, lustrous Dioptase crystal that wrap around both sides of specimen. Comes with old Luis Leite label.
B916 - Dioptase Malpaso Quarry, Dumesnil, Córdoba, Argentina cabinet - 14 x 9 x 5 cm ![]() ![]() ![]() Dioptase crystals to 5mm on matrix. Good sized specimen with good coverage, loaded with bright undamaged crystals. One of the best specimens from this occurrence I've seen.
B919 - Elbaite $ 250 Cruziero Mine, Minas Gerais, Brazil thumbnail - 2.1 x 1.2 x 0.9 cm ![]() ![]() ![]() Single gemmy Tourmaline crystal, complete and undamaged, with a bright pink termination and a purple body color. Weighs 5.3 grams.
B922 - Chrome Vesuvianite $ 380 Jeffrey Mine, Asbestos, Quebec, Canada thumbnail - 1.5 x 0.7 x 0.7 cm ![]() ![]() ![]() Bright emerald green chromium rich Vesuvianite crystal. Hard to find, undamaged crystal with great color.
B924 - Mimetite $ 400 Pingtouling Mine, Liannan Co., Qingyuan Prefecture, Guangdong Province, China small cabinet - 7.5 x 6 x 2 cm ![]() ![]() ![]() High quality, glassy crystals with a rich golden color.
B928 - Chamosite psuedo. Almandine Michigamme Mine, Marquette Co., Michigan small cabinet - 5.5 x 3.5 x 3 cm ![]() ![]() ![]() Intergrown pair of crystals of Almandine replaced by Chamosite (the iron analogue of Clinochlore in the Chlorite group of minerals) from the upper peninsula of Michigan. Good sized with crystals to 3.5 cm (most found were less than 3cm). The old label indicates it was in the Frank Hess collection and identified it as 'Aphrosiderite', however Aphrosiderite is an obsolete name and Chamosite is the correct species name. I only have the Hess label, but this specimen is also shown on the Arkenstone website and indicates it was from the historical garnet collection of SMITH COLLEGE, Northampton, Massachusetts and ex. Dr. Gary Hansen Collection.
B930 - Chrome Tourmaline Nadonjukin, Simanjiro, Tanzania thumbnail - 2.5 x 1.3 x 1.2 cm ![]() ![]() ![]() Terminated single gem crystal of Chrome Tourmaline which is a chromium and vanadium rich Dravite. Complete all around with deep emerald green coloration. Fantastic color. Undamaged. From a spectacular pocket opened in 2016.
B932 - Chrome Tourmaline $ 600 Nadonjukin, Simanjiro, Tanzania thumbnail - 2.3 x 0.8 x 0.6 cm ![]() ![]() Terminated single gem crystal of Chrome Tourmaline which is a chromium and vanadium rich Dravite. Complete all around with deep emerald green coloration in the upper half and a more olive green in the lower half. Fantastic color and gemmy the entire length. Undamaged. From a spectacular pocket opened in 2016.
B936 - Chrome Tourmaline $ 350 Nadonjukin, Simanjiro, Tanzania thumbnail - 2 x 0.7 x 0.6 cm ![]() ![]() ![]() Terminated single gem crystal of Chrome Tourmaline which is a chromium and vanadium rich Dravite. Complete all around with deep emerald green coloration in the upper half and a more olive green in the lower half. Fantastic color and the majority of the crystal is highly gemmy. Undamaged. From a spectacular pocket opened in 2016.
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