Vermiculite
- Technical Details
Vermiculite is an hydrated Lamellar mica group of minerals,
when heated to a high degree of temperature exfoliates and
expands 8 to 14 times in volume and yields Exfoliated Vermiculite
by loss of water molecules.
CHEMICAL COMPOSITION:
| Average Moisture |
7.89%
|
| Loss on Ignition |
11.05%
|
| SiO2 |
30.52%
|
| Fe2O3 |
16.32%
|
| TiO2 |
2.63%
|
| Al2O3 |
14.74%
|
| CaO |
9.47%
|
| MgO |
3.68%
|
| Alkalies |
3.68%
|
PHYSICAL CHARACTERISTICS:
The bulk density of Exfoliated Vermiculite is 172 Kg/M3 for
size from 6mm to 12mm and 225 Kg/M3 for size below 1mm. The
colour of Raw Vermiculite is light to dark brownish yellow,
greenish or almost black. When heated, the colour changes
to lustrous gold/golden brown with a silver (or) bronze tint.
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