WHITENESS : 93% +/-2
SILICA SiO2 : 52 - 55%
MAGNESIA MgO : 26 - 28%
ALUMINA AI2O3 : 0.50 - 1.50%
IRON Fe2O3 : 0.5 - 0.8%
CALCIUM OXIDE CaO : 6 - 8%
LOSS ON IGNITION : 8 - 10%
BULK DENSITY (gm/ml) : 0.45 - 0.55%
Ph : 8-9
MOISTURE : 0.4 - 0.6%
SPECIFIC GRAVITY : 2.7 - 2.8%
RETENTION ON 500 MESH : 0.8%
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