Encyclopedia of Astrobiology

2015 Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James (Jim) CleavesII, Daniele L. Pinti, José Cernicharo Quintanilla, Daniel Rouan, Tilman Spohn, Stéphane Tirard, Michel Viso

Quartz

  • Nicholas ArndtEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-662-44185-5_1324

Definition

Quartz is a hard, transparent, white, or colored  mineral with chemical formula SiO2 (trigonal crystal system) and the hardness 7 in the Mohs hardness scale. It is an essential component of felsic intrusive (granitoid) or volcanic (rhyolite) rocks and their metamorphic equivalents. Because of its hardness, common occurrence in the protoliths, and lack of cleavage, it is highly resistant to weathering, erosion, and transport. It is therefore the most common mineral grain in sediments and sedimentary rocks.

See Also

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.ISTerre Université Grenoble AlpesGrenobleFrance