A high purity industrial mineral in which the sand grains are made entirely of quartz. Impurities are very minor. The main composition is SiO2 > 99%, with very little contaminant contents and heavy minerals of < 0.1% .
A high purity industrial mineral in which the sand grains are made entirely of quartz. Impurities are very minor. The main composition is SiO2 > 99%, with very little contaminant contents and heavy minerals of < 0.1% .