Vermikuliittilähteet
Vermikuliittilähteet refers to sources of vermiculite. Vermiculite is a naturally occurring mica-group mineral that undergoes exfoliation when heated. This exfoliation process causes it to expand into a lightweight, porous material. It is typically found in igneous rocks and can also form through hydrothermal alteration of minerals like biotite and phlogopite. Major commercial deposits of vermiculite are located in various parts of the world, including South Africa, Australia, China, and the United States.
The primary use of vermiculite is as an industrial mineral. Its excellent insulating properties, fire resistance,