Vermiculite [ Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O ]
Image of Vermiculite
Material properties
| Formula | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O |
| Abbreviation | Vrm |
| IMA Status | Grandfathered (pre-IMA), 1824 |
| Crystal symmetry | Monoclinic, Point group 2/m, Space group C2/m (#12) |
| Classifications | Minerals containing H2O, Minerals containing OH, Clay |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Tags | Aluminosilicate, Hydrated, Hydroxide, Mineral |
Composition
| Element | Wt% |
|---|---|
| H | 2 |
| Mg | 8.68 |
| Fe | 9.97 |
| Al | 23.01 |
| Si | 5.57 |
| O | 50.77 |
| Total: | 100 |
Specimens of Vermiculite
| Name | Owner | Materials | Phase purity | Image |
|---|---|---|---|---|
| MES152 Saponite | CSIRO | Saponite, Vermiculite (6.4%) | 6.4 |
