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What is Bentonite?
Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. The montmorillonite structure is a 2:1 crystal structure composed of two silicon oxygen tetrahedrons and a layer of aluminum oxygen octahedron. There are some cations, such as Cu, Mg,...Read more -
Tourmaline
Tourmaline is the general name of tourmaline group minerals. Its chemical composition is relatively complex. It is a ring structure silicate mineral characterized by boron containing aluminum, sodium, iron, magnesium and lithium. [1] The hardness of tourmaline is usually...Read more