Granite Composition
Jan 25, 2020
Granite is formed by igneous rock. It is a kind of hard crystalline stone. It was originally formed of feldspar and quartz and mixed with one or more black minerals. It is flat in structure.
Granite is mainly composed of quartz, feldspar and mica. Among them, the content of feldspar is 40% ~ 60%, and the content of quartz is 20% ~ 40%. Its color depends on the type and quantity of the ingredients. Granite is a rock with a fully crystalline structure. High-quality granite has fine and uniform grains, compact structure, high quartz content, and bright feldspar.
Granite has a higher silica content and is an acid rock. Some granites contain trace radioactive elements and should be avoided for indoor use. Granite has a dense structure, a hard texture, good acid and alkali resistance, and good weather resistance. It can be used outdoors for a long time.
