Görgeyite
Gorgeyiet, Gorgeyite, Görgeyit, Görgeyita, Гергейит, ｼﾞｮｰｼﾞｱｲﾄ, 硫酸鉀鈣礦
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula:
K2Ca5(SO4)6·H2O
Mineral class: sulfates Crystal system: monoclinic Mohs scale: 3.5 - 4 Density (g/cm3): 2.90 - 2.93 Refractive index: 1.56 - 1.57 Cleavage: poor Colors: colorless, white, yellow, brown, green Transparency: transparent - translucent Luster: vitreous Fluorescence: - Pleochroism: - Largest crystal: 8.5 cm? Deposits: China, Greece, Italy, Kazakhstan, Austria, Romania, Russia Discovery: 1953 1st Description: 1953 (Mayrhofer) Name: in honor of the Austrian mineralogist Rolf von Görgey (1886 - 1915). |
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Görgeyite
Size: 0.52 x 0.31 cm Weight: 0.55 ct Origin: Kazakhstan Photo by kind permission of © www.thegemtrader.com |
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Görgeyite
Size: 0.94 x 0.76 cm Weight: 1.94 ct Origin: Russia Photo by kind permission of © www.ke4gems.com |
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Görgeyite Mineral
Size: 3.8 x 3.2 x 1.5 cm Origin: Inder B / Atyrau / Atyrau Oblast' / Kazakhstan Photo by kind permission of © www.irocks.com |
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Görgeyite
Size: 0.75 x 0.51 x 0.34 cm Weight: 0.88 ct Origin: Kazakhstan Photo by kind permission of © www.freakingcat.com |
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