Exfoliated Vermiculite ( 1 kg Pack)
Vermiculite is a substrate for Soilless Agriculture.
Vermiculite is a natural mineral that expands with the application of heat. The expansion process is called exfoliation and it is routinely accomplished in purpose-designed commercial furnaces. Vermiculite is formed by weathering or hydrothermal alteration of biotite or phlogopite. Vermiculite holds moisture when added into a potting mix.