Bultfonteinite
Bultfonteiniet, Bultfonteinit, Bultfonteinita, Бултфонтейніт, 氟矽鈣石, バルトフォンティン石
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula: Ca2SiO2(OH,F)4
Mineral class: silicates Crystal system: triclinic Mohs scale: 4.5 Density (g/cm3): 2.73 Refractive index: 1.587 - 1.597 Cleavage: good Colors: colorless, white, pale pink Transparency: transparent - translucent Luster: vitreous Fluorescence: - Pleochroism: - Largest crystal: 2 cm ? Deposits: Australia, Jordan, Canada, Israel, Russia, South Africa, Japan, USA Discovery: 1932 1st Description: 1932 (J. Parry, A.F. Williams, F.E. Wright) Name: After the type locality Bultfontein Mine / Kimberley / South Africa |
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Bultfonteinite Mineral
Size: 8.0 x 6.0 x 3.0 cm Origin: N'Chwaning Mine / Kuruman / Northern Cape Prov. / South Africa Photo by kind permission of © www.irocks.com |
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Bultfonteinite Mineral
Size: 5.9 x 4.6 x 3.1 cm Origin: N'Chwaning II Mine / Kuruman / Northern Cape Prov. / South Africa Photo by kind permission of © www.irocks.com |
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Bultfonteinite Mineral
Size: 1.8 x 1.2 x 0.6 cm Origin: N'Chwaning Mine / Kuruman / Northern Cape Prov. / South Africa Photo by kind permission of © www.lucianabarbosa.com |
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