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


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

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
Bultfonteinite

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
Bultfonteinite

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
Bultfonteinite

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