Description

Golden Vermiculite [crude or expanded vermiculite powder, flakes] Appearance: Flakes or powder 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 in kg/cu m lb/cu ft System A System B *6 5/8 down ****2 3.**4.5 NA Premium (6) 8 5/*6 down ****5 4.**5.0 1 Large (4) 4 5/*2 down ****0 4.**5.5 2 Medium (3) 2 0.*8 down *****2 4.**7.0 3 Fine (2) 1 0.*4 down *****4 5.**9.0 4 Superfine (1) 0.5 0.*2 down *****0 5.***0.0 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.