We are constantly presenting a quality approved array of Silica Sand. The offered product is brown in color and is highly preferred for its optimum quality, minimal thermal conductivity, consistent chemistry and high resistance against thermal shocks. Chemical Composition : Sio2 the general impurities are iron/aluminium oxides and lime. Physical Characters : Sandstone is a friable & hard. The grain size of the particles is variable. it is friable & mainly brown to grey in colour. Specification : Glass making sand IS 488 - 1963. Indian Standard for silica sand used for glass making.