Green Circle Minerals

Company Description

98.5 % SiO2 Silica Sand used in foundries and resin coating. Other impurities such as Iron and Magnesium Oxides,Clay,Alumina etc each should be less than 0.2 %.The shape of the grain should be sub angular to round.The grades of silica sand required are US ASTM sieve AFS nos. 50/55, 55/60 and 60/65.Sieve distribution should be minimum 80 % on 3 sieves.