Norbergite
Norbergiet, Norbergit, Norbergita, Норбергит
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula Mg3[(F,OH)2|SiO4]
Mineral class: silicates Crystal system: orthorhombic Mohs scale: 6 - 6.5 Density (g/cm3): 3.14 - 3.18 Refractive index: 1.563 - 1.59 Cleavage: - Colors: colorless, white, yellowish, orange, pink, green, brown Transparency: transparent - translucent Luster: vitreous - resinous Fluorescence: SW UV: yellow Pleochroism: X: light yellow, Y: light yellow, Z: colorless Largest crystal: 2,5 cm? Deposits: Australia, Finland, Italy, Canada, Myanmar, Pakistan, Romania, Russia, Sweden, USA Discovery: 1926 1st Description: 1926 Name: from the deposit at Norberg / Västmanlands län / Sweden |
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Norbergite Mineral
Size: 5.5 x 4.8 x 1.7 cm Origin: Limecrest Quarry / Sparta / Sussex County / New Jersey / USA Photo by kind permission of www.civilminerals.com |
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Norbergite Mineral with red Spinel
Size: 4.9 x 2.9 x 1.7 cm Origin: Mogok / Myanmar Photo by kind permission of www.irocks.com |
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Norbergite Mineral
Size: 1.01 x 0.61 x 0.58 cm Origin: Onh Bin Yee Htwet / Mogok / Myanmar Photo by kind permission of www.crystal-treasure.com |
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