Genthelvite
Genthelviet, Genthelvit, Genthelvita, Гентгельвин, ｼﾞｴﾝﾄﾍﾙﾋﾞﾝ, 鋅硫石
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula: Zn4Be3(SiO4)3S
Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 Density (g/cm3): 3.44 - 3.70 Refractive index: 1.742 - 1.745 Cleavage: poor Colors: colorless, yellow, pink, red, brown, green, blue Transparency: transparent Luster: vitreous Fluorescence: LW and SW UV: green Pleochroism: - Largest crystal: 5 cm? Deposits: worldwide Discovery: 1944 1st Description: 1944 (Glass) Name: for its relationship to helvite, and for Fredrick August Ludwig Karl Wilhelm Genth (1820 - 1893), German-American chemist and mineralogist (source: Mindat) |
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Genthelvite Mineral
Size: 1.4 x 0.9 x 0.6 cm Origin: Poudrette Quarry / Mount Saint-Hilaire / Rouville County / Québec / Canada Photo by kind permission of © www.irocks.com |
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Genthelvite Mineral
Size: 1.5 x 1.2 x 1.2 cm Origin: Poudrette Quarry / Mount Saint-Hilaire / Rouville County / Québec / Canada Photo by kind permission of © www.trinityminerals.com |
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Genthelvite Mineral / SW UV
Size: 0.7 x 0.6 x 0.6 cm Origin: Poudrette Quarry / Mount Saint-Hilaire / Rouville County / Québec / Canada Photo by kind permission of © www.lucianabarbosa.com |
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Genthelvite Mineral
Size: 1.16 x 0.78 x 0.56 cm Origin: Zagi Mt. / Mulla Ghori / Federally Administered Tribal Areas (FATA) / Pakistan Photo by kind permission of © www.crystal-treasure.com |
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Genthelvite
Weight: 0.95 ct Origin: Zagi Mt. / Mulla Ghori / Federally Administered Tribal Areas (FATA) / Pakistan Foto mit freundlicher Erlaubnis von © http://lucianabarbosa.com |
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Genthelvite
Weight: 0.09 ct Origin: Zagi Mt. / Mulla Ghori / Federally Administered Tribal Areas (FATA) / Pakistan Photo by kind permission of © Darlene Cobler |
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Genthelvite Mineral
Size: 2.1 x 1.7 x 0.8 cm Origin: Zagi Mt. / Mulla Ghori / Federally Administered Tribal Areas (FATA) / Pakistan Photo by kind permission of © www.irocks.com |
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Genthelvite Mineral
Image width: 0.3 cm Origin: Washington Pass / Okanogan County / Washington / USA Photo by kind permission of © Saul Krotki |
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Genthelvite Mineral
Size: 1.16 x 0.78 x 0.56 cm Origin: Zagi Mt. / Mulla Ghori / Federally Administered Tribal Areas (FATA) / Pakistan Photo by kind permission of © www.crystal-treasure.com |
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Genthelvite Mineral
Size: 2.1 x 1.7 x 1.5 cm Origin: Poudrette Quarry / Mount Saint-Hilaire / Rouville County / Québec / Canada Photo by kind permission of © www.irocks.com |
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Genthelvite Mineral
Size: 2.0 x 1.3 x 1.2 cm Origin: Poudrette Quarry / Mount Saint-Hilaire / Rouville County / Québec / Canada Photo by kind permission of © www.irocks.com |
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