Altisite
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Altisite (IMA symbol: Ati[1]) is an exceedingly rare alkaline titanium aluminosilicate chloride mineral with formula Na3K6Ti2Al2Si8O26Cl3, from alkaline pegmatites. It is named after its composition (ALuminium, TItanium, and SIlicon).[2][3][4]
| Altisite | |
|---|---|
| General | |
| Category | Minerals |
| Formula | Na3K6Ti2Al2Si8O26Cl3 |
| IMA symbol | Ati |
| Identification | |
| Color | Colourless |
| Cleavage | None Observed |
| Fracture | Conchoidal |
| Mohs scale hardness | 6 |
| Luster | Vitreous |
| Streak | White |
| Specific gravity | 2.64 |
The mineral crystallizes in the monoclinic crystal system with space group C2/m.[2]
References
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