What can vermiculite do? What's the use?
Its crystalline structure is monoclinic, and it looks like mica from its appearance. Vermiculite is produced by hydration of certain granite. It is commonly produced with asbestos.
Vermiculite is a natural, inorganic, non-toxic mineral that expands at high temperatures. It is a relatively rare mineral, belonging to silicates.
Because vermiculite has the ability of ion exchange, it has a great effect on the nutrition of the soil. In 2000, the total output of vermiculite in the world exceeded 500 thousand tons. The major producers are China, South Africa, Australia, Zimbabwe and the United states.
