quartz lumps with 99.88% silica
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SOURA SLATE STONES is located at Markapur, the hub of South Indian Slates. We have our own quarries for slate and quartz. We have a quartz mine with min.200 MT production capacity/Day near Kanigiri, Prakasam Dist. , AP(India) . We have quality certifications from Essen Lab, Chennai.
FERRIC OXIDE(Fe2O3) :0.02%TITANIA(TiO2) :0.005%
LOSS ON IGNITION(LOI) :0.02%