Golden Vermiculite->buildIng material

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Golden Vermiculite

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Architecture and construction->Constructing structure->buildIng material

Product Specification

Model No:	GW-VGC-B1/3

Country	CN
Brand	GWS
Materials	vermiculite
Size	1-3mm
Color	golden
Packing	Jumbo bags
Minimum Order	24 Metric Tons
Payment Term	T/T

Product Detail

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].

Origin: China

Applications
Vermiculite is very useful for many industrial purposes. It is very lightweight, chemically non-reactive, fire resistant and odorless. Vermiculite can be used to soak up such toxic liquids as fertilizers, herbicides and insecticides. It is this ability that is also being put to good use as a bedding for pets and livestock. In addition, vermiculite can be used in concrete and ceramics as a heat resistant additive.

Important Properties
Vermiculite is usually brown to golden brown, also white, colorless or yellow. Luster is pearly to greasy. Its Crystals are translucent and Crystal System is monoclinic; 2/m. Its Crystal Habits include pseudohexagonal tabular crystals or "books", also found in compact or lamellar masses or microscopic crystals. The Cleavage is perfect in one direction, basal. Fracture is uneven to lamellar. The Hardness is 1.5 (can sometimes leave marks on paper). The Specific Gravity is 2.3 (below average). Its crystals expand to many times their original volume when heated. Best Field Indicators are softness, color, luster and expandability when heated.

Grades
Size Densities Equivalent names/designations
mm inch kg/cubic meter System A System B
16 5/8 down 600-1100 NA Premium (6)
8 5/16 down 600-1100 1 Large (4)
4 5/32 down 600-1100 2 Medium (3)
2 0.08 down 600-1100 3 Fine (2)
1 0.04 down 600-1100 4 Superfine (1)
0.5 0.02 down 600-1100 5 Micron (0)

In addition to the standard range of vermiculite product above GREAT WALL MINERAL can manufacture vermiculite grades tailored to customers specific requirements.

For more detailed information please contact the vermiculite factory GREAT WALL MINERAL.

More Products from this Supplier

Expanded Vermiculite


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