Mineral | Vermiculite | (Mg,Fe,Al)3(Al,Si)4O10(OH)2ยท4H2O | Silicate
Vermiculite forms from the alteration of biotite and other mica minerals. Occurs in weathered mica-rich rocks.
Vermiculite Displays These Colors
Brown | Yellow
Vermiculite is Found in These Surrounding States
Ohio | Indiana | Kentucky | West Virginia | Pennsylvania | Michigan