Quartz is a chemical compound consisting of one-part silicon and two parts oxygen…

Natural Silica / Silicon Dioxide

Silicon dioxide, also known as silica (from the Latin silex),…


Feldspar is by far the most abundant group of minerals in the earth’s crust,

China Clay / Kaolin

Kaolin is a white, soft, plastic clay mainly composed of fine-grained plate-like particles…

Dolomite / Dolostone

Dolomite is a common rock-forming mineral. It is the primary component of the sedimentary