Olmiite
Olmiiet, Olmiit, Olmiita, Олмиит
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula: CaMn2+[SiO3(OH)](OH) (Manganese dominant)
Mineral class: silicates Crystal system: orthorhombic Mohs scale: 5 - 5.5 Density (g/cm3): 3.05 Refractive index: 1.663 - 1.694 Cleavage: - Colors: yellow, orange, rose Transparency: transparent - translucent Luster: vitreous - subvitreous Fluorescence: SW: red Pleochroism: - Deposit: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Discovery: 2006 1st Description: 2007 (P. Bonazzi, L. Bindi, O. Medenbach, R. Pagano, Lampronti, Menchetti) Name: zu Ehren des italienischen Mineralogen Filippo Olmi |
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Olmiite Mineral
Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.mineralgallery.co.za |
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Olmiite Mineral
Size: 3.0 x 3.0 x 2.1 cm Origin: N'Chwaning Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.aarockshop.com |
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Olmiite
Size: 0.7 x 0.6 x 0.4 cm Weight: 0.97 ct Origin: N'Chwaning / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.lucianabarbosa.com |
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Olmiite Mineral
Size: 2.9 x 2.7 x 1.5 cm Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.irocks.com |
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Olmiite Mineral / SW UV
Size: 2.0 x 1.1 x 1.0 cm Origin: Wessels Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.lucianabarbosa.com |
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Olmiite Mineral
Size: 3.4 x 2.3 x 3.8 cm Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Foto mit freundlicher Erlaubnis von © www.fabreminerals.com |
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Olmiite
Weight: 0.56 ct Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.rocklogic.biz |
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Olmiite Mineral
Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.mineralgallery.co.za |
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Olmiite
Weight: 0.81 ct Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.minclassics.com |
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Olmiite Mineral
Size: 4.2 x 2.3 x 1.8 cm Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.irocks.com |
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Olmiite
Size: 2.42 x 1.21 cm Weight: 11.90 ct Origin: Kuruman / Northern Cape Province / South Africa Photo by kind permission of © www.rarestone.com |
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Olmiite Mineral
Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.irocks.com |
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Olmiite Mineral
Size: 4.0 x 2.8 x 2.0 cm Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.irocks.com |
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Olmiite Mineral
Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.exceptionalminerals.com |
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Olmiite Mineral
Size: 1.8 x 1.3 x 0.9 cm Origin: N'Chwaning Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.lucianabarbosa.com |
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Olmiite
Weight: 1.35 ct Origin: N'Chwaning Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.lucianabarbosa.com |
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Olmiite
Weight: 6.02 ct Origin: N'Chwaning II Mine / Hotazel / Northern Cape Province / South Africa |
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See also Poldervaartite.
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