Vermiculite
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 10.99% | 0.26 | |
| Li2O | 0.06% | - | |
| MgO | 22.20% | 0.74 | |
| Al2O3 | 7.96% | 0.10 | |
| SiO2 | 49.00% | 1.09 | |
| LOI | 9.80% | n/a | |
| Oxide Weight | 120.48 | ||
| Formula Weight | 133.57 | ||
Notes
Clay-making mineral of the ideal form (Mg, Ca)x(Si8-x Alx(Mg, Fe)6O20, 8H2O of varying typical analyses.
Hardness 1.6 Density 2.3-2.7 Water insoluble
Used principally in refractory materials for purposes of insulation.
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