Sellaite
Sellaiet, Sellait, Sellaita, Селлаит, ｾﾗｲﾄ, 氟鎂礦
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula: MgF2
Mineral class: Halides Crystal system: tetragonal Mohs scale: 5 - 6 Density (g/cm3): 2.97 - 3.15 Refractive index: 1.378 - 1.390 Cleavage: perfect Colors: colorless, white Luster: vitreous Fluorescence: - Pleochroism: - Largest Sellait crystal: 5 cm? Deposits: worldwide Discovery: 1868 1st Description: 1951 Name: in honor of the Italian mineralogist Quintino Sella (1827 - 1884) |
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Sellaite
Size: 0.7 x 0.4 x 0.2 cm Weight: 0.46 ct Origin: Brumado / Bahia / Brazil Photo by kind permission of © http://lucianabarbosa.com |
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Sellaite Mineral
Origin: Serra das Éguas / Brumado / Bahia / Brazil Photo by kind permission of © www.irocks.com |
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Sellaite
Size: 0.66 x 0.49 cm Weight: 0.60 ct Origin: Serra das Éguas / Brumado / Bahia / Brazil Photo by kind permission of © www.thegemtrader.com |
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