Jadarite | |
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General | |
Category | Nesosilicate |
Formula (repeating unit) | LiNaSiB3O7OH |
IMA symbol | Jad[1] |
Strunz classification | 9.AJ.40 |
Crystal system | Monoclinic |
Crystal class | Prismatic (2/m) (same H-M symbol) |
Space group | P21/n |
Unit cell | a = 6.816(2), b = 13.789(2) c = 6.758(2) [Å]; β = 111.08(2)°; Z = 4 |
Identification | |
Formula mass | 219.46 g/mol |
Color | White |
Crystal habit | As microscopic anhedral grains |
Fracture | Irregular to conchoidal |
Tenacity | Brittle |
Mohs scale hardness | 4 - 5 |
Luster | Dull |
Streak | White |
Diaphaneity | Translucent to opaque |
Specific gravity | 2.45 |
Optical properties | Biaxial |
Ultraviolet fluorescence | Weak pink to orange under UV |
References | [2][3] |
Jadarite is a white, earthy monoclinic silicate mineral,[2] sodium lithium boron silicate hydroxide[4] (LiNaSiB3O7(OH) or Na2OLi2O(SiO2)2(B2O3)3H2O).
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