Detailed Introduction

Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated. Exfoliation occurs when the mineral is heated sufficiently, and commercial furnaces can routinely produce this effect. Vermiculite forms by the weathering or hydrothermal alteration of biotite or phlogopite. 

Chemical Composition

SiO2: 38-46%

Al2O3: 7-9%

Fe2O3: 4-20%

MgO: 22-36%

CaO: 2.0-3.5%

K2O: 2.1-4.6%

TiO2: 0.2-1.5%

Packing: 50kg, 1,000kg, 1100kg or 1200kg bags.

VERMICULITE is the name given to a group of hydrated laminar minerals which are aluminium-iron-magnesium silicates, resembling mica in appearance.Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion (exfoliation) when heated. It is very lightweight and mixes easily with other mediums.