Raw Vermiculite
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| Post Date: | Jan 11,2013 |
| Expiry Date: | Jan 11,2014 |
| Detailed Description: |
Quantity: 2000Metric Tons Specs:micron, superfine, fine, medium, large, premi Price:300-800 USD Metric Tons Payment Method: T/T General Description: Vermiculite {(Mg, Fe, Al)3(Al, Si)4O10(OH)2 - 4H2O, Hydrated Magnesium Iron Aluminum Silicate Hydroxide} is an important member of the Montmorillonite/Smectite Group, members of which also belong to the larger general group known as the Clays. Vermiculite is also sometimes placed in the Mica Group, although recent analysis has excluded it from this group. Vermiculite is basically overly hydrated biotite or phlogopite. Natural specimens originated as these minerals and later altered to vermiculite through weathering or hydrothermal processes. Vermiculite typically forms small platy mica like crystals. These crystals contain water in their structures and when heated to above 870C, the water turns into steam causing the crystals to expand rapidly. The volume increase can be 500% to even 3000%. Appearance: Flakes, splittings, particles, powder [Golden Vermiculite and Silver Vermiculite in different size]. |
| Company: | Great Wall Mineral |
| Contact: | Lenny Sun |
| Tel: | 86-311-89851656 |
| Fax: | 86-311-87762651 |
| Email: | dara@greatwall86.com |
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