Formula: (Na,Ca,Bi)2Ta2O6F
Mineral class: oxides Crystal system: isometric Mohs scale: ? Density (g/cm3): 6.65 Refractive index: 2.03 Cleavage: ? Colors: brown, green, ... ? Transparency: transparent Luster: adamantine Fluorescence: ? Pleochroism: ? Largest crystal: 1 cm ? Deposits: Brazil, Mozambique, Pakistan, Russia, USA Discovery: 1998 ? 1st Description: 2008 (Witzke) ? Name: from its relation to microlite |
Fluornatromicrolite
Image width: 0.9 cm Origin: Quixaba Mine / Frei Martinho / Paraíba / Brazil Photo by kind permission of © www.katos-collections.jp |
Fluornatromicrolite
Size: 1.2 x 1.0 x 0.9 cm Origin: Alto Ligonha / Zambezia Prov. / Mozambique Photo by kind permission of © www.lucianabarbosa.com |
Fluornatromicrolite
Size: 0.4 x 0.3 x 0.3 cm Weight: 0.43 ct Origin: Alto Ligonha / Zambezia Prov. / Mozambique Photo by kind permission of © www.lucianabarbosa.com |