Other name: Quartz stone, Silica Quartz, Silica Rock
Color: gray white
Structure: Irregular granular structure of self - or semi - self - shaped crystals
Shape: Layered or massive
Hardness: Dense hard
Bases: quartz and a little calcite
The mineral component of silica ore is quartz, which is grease sheen and content more than 98%.
Locally, calcite veins can be seen penetrating along the fissures.
Silica ore weathering characteristics: the mineral chemical composition of SiO2 has the ability to resist weathering. Except for partial surface damage, it is dense and hard, and it is a primary ore. The content of Al2O3 in mineral is slightly higher.
Quartzite is mainly used in glass-making.
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