Bertrandite [ Be4Si2O7(OH)2 ]
Image of Bertrandite
Material properties
| Formula | Be4Si2O7(OH)2 |
| Abbreviation | Btd |
| Classification | Minerals containing OH |
| Luminescence emitter | O |
| IMA Status | Grandfathered (pre-IMA), 1878 |
| Search other databases | webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Orthorhombic, Point group mm2, Space group Cmc21 (#36) |
| Tags | Mineral, Silicate , Hydroxide |
Composition
| Element | Atoms |
|---|---|
| O | 9 |
| Si | 2 |
| H | 2 |
| Be | 4 |
| Total: | 17 |
Specimens of Bertrandite
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