Alsakharovite-Zn (IMA symbol: Ask-Zn[1]) is an extremely rare alkaline strontium zinc titanium silicate mineral from the cyclosilicates class, with the chemical formula NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O, from alkaline pegmatites. It belongs to the labuntsovite group.[2][3]
Alsakharovite-Zn | |
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General | |
Category | Mineral |
Formula (repeating unit) | NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O |
IMA symbol | Ask-Zn |
Identification | |
Color | White, light brown, colourless |
Cleavage | None Observed |
Fracture | Irregular/Uneven |
Mohs scale hardness | 5 |
Luster | Vitreous |
Streak | White |
Diaphaneity | Transparent, Translucent |
Specific gravity | 2.9 |
The mineral crystallizes in the monoclinic system with space group Cm.[4]