Earth India Minnerals Madhapar, Bhuj, Gujarat

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.

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.

Attapulgite or Palygorskite is a magnesium aluminium phyllosilicate with formula (Mg,Al)2Si4O10(OH)·4(H2O) which occurs in a type of clay soil. Gel grade, dry processed attapulgites are used in a very wide range of applications for suspension, reinforcement and binding properties. Paints, sealants, adhesives, tape-joint compound, catalysts, suspension fertilizers, wild fire suppressants, foundry coatings, animal feed suspensions and molecular sieve binders are just a few uses of dry process attapulgite

Bauxite is the aluminium ore from which most aluminium is extracted. Bauxite is usually strip mined i.e. surface mining because it is almost always found near the surface of the terrain, with little or no overburden at all. Approximately 95% of the world's bauxite production is processed first into alumina, and then into aluminium by electrolysis. Bauxite rocks are typically classified according to their intended commercial application: metallurgical, abrasive, cement, chemical, and refractory.