VERMICULITE  PROPERTIES

Vermiculite is a hydrated magnesium aluminum silicate mineral. The formation of vermiculite has been variously ascribed to natural weathering, hydrothermal action, percolating ground waters or combinations of all these three actions. Research over recent years, however, tends to exclude an exclusively hydrothermal origin for vermiculite, and the main agents for vermiculite formation are believed to be due to natural weathering and percolating ground waters. Commercial vermiculite deposits are normally derived from either iron bearing phlogopite or biotite micas, by the natural alteration of the mineral structure to reduce the alkali metal levels and to incorporate crystalline water into the structure.

 1 big bag approx. 1100 kg.(+10,-10)