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Sio2 - 85.26% Cao - 1.40% Mgo - 1.40% Fe2o3 - 2.70% Al2o3 - 1.30% Loi - 7.26% Na2o - 0.13% K2o - 0.15%
Diatomaceous earth and siliceous earth powder.
Quartz, copper slag.
