Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso

Quartz

Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_1324-3

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

Keywords

Bioorganic Chemistry Sedimentary Rock Chemical Formula Common Occurrence Crystal System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Maison des GéosciencesLGCA, Université J. FourierSt-Martin d’HèresFrance