Aspidolite
Phyllosilicate mineral in the trioctahedral mica group
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Aspidolite is a mica group phyllosilicate mineral, the sodium analogue of the magnesium-rich mineral phlogopite. The ideal chemical formula for aspidolite is NaMg3AlSi3O10(OH)2.[2]
CategoryPhyllosilicate minerals
FormulaNaMg3AlSi3O10(OH)2
| Aspidolite | |
|---|---|
| General | |
| Category | Phyllosilicate minerals |
| Group | Mica group, trioctahedral mica group |
| Formula | NaMg3AlSi3O10(OH)2 |
| IMA symbol | Asp[1] |
| Crystal system | Monoclinic |
| Crystal class | 2/m |
| Space group | C2/m |
| Unit cell | a = 5.291(8), b = 9.16(2), c = 10.12(2) Å |
| Identification | |
| Fracture | Micaceous |
| Optical properties | Biaxial (-) |
| References | [2] |
