Raw silver vermiculite
H.S code:2530102000
Appearance :Silver-grey color,flakes or granulate
1. Vermiculite brief
Vermiculite, chemical formula M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)], is a magnesium water inclouded aluminum silicate secondary metamorphic minerals of layered structure. It likes mica in form, and usually come from weathered or hydrothermal alterated black (gold ) Mica. It will present a deflection shape after heat expansion and water loss, liking a leech pattern in form , so it gets the name vermiculite.
2.Raw silver vermiculite size
Vermiculite grade | Vermiculite size | Expansion ratio | Impurity |
Super fine | 0.3-1mm0.335-1mm | 7-9times min | 1.Impurity:5%-10% 2.Moisture:5%max 3.Asbestos:None 4.Origin:Xinjiang,China 5.Sample is free with 1kgs 6.Price is negotiated
|
Fine | 1-2mm 0.71-2mm | 9-10times min | |
Medium | 2-4mm 1.4-4mm | 10-11times min | |
Large | 3-6mm 4-8mm 2.8-8mm | 8-10times min |
3.Raw silver Vermiculite chemicals
Composition | SiO2 | MgO | Al2O3 | Fe2O3 | CaO | K2O | ph |
Percentage | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-2 | 5-8 | 7-11 |
Silver vermiculite mine
Raw silver vermiculite photo:
Packing