Earth India Minerals Bhuj, Gujarat

China clay is an important raw material of ceramic industry. In consists of partly crystalline and partly amorphous mineral of kaolin group. So it can also be called as kaolinite. Kaolinite is derived from kaolin which is a corruption of the chinese kaolin meaning high ridge. In shat china clay is the deposits of kaolin produced by hydrothermal decomposition or weathering of feldspar.

Silica sand is produced by crushing sand stone or quartzite of open texture, and washing and grading it to yield requisite grain distribution. Silica flour is produced by crushing grinding and washing the high grade quartz, quartzite rocks or from white silica sand.

Bentonite are very fine grained clays. They vary in color from cream to olive green. Bentonite shows conchoidal or subconchoidal fracture; can be easily cut with knife into thin shavings. It shows waxy luster on freshly cut surface and are soapy to feel. Bentonite is an important naturally occurring clay of great commercial importance. Based on water absorbing qualities in industry, Bentonite are know as swelling and non-swelling types.

Bauxite is the aluminium ore from which most aluminium is extracted. Bauxite rocks are typically classified according to their intended commercial application: metallurgical, abrasive, cement, chemical, and refractory.

Baryte itself is generally white or colorless. Baryte occurs in a large number of depositional environments, and is deposited through a large number of processes including biogenic, hydrothermal, and evaporation, among others.