Article
Article
- Earth Science
- Geology and geodesy
- Quartzite
- Earth Science
- Mineralogy and petrology
- Quartzite
Quartzite
Article By:
Barth, T. F. W. Formerly, Geologic Museum, Oslo, Norway.
Last reviewed:December 2019
DOI:https://doi.org/10.1036/1097-8542.563700
A metamorphic rock consisting largely or entirely of quartz. Most quartzites (see illustration) are formed by metamorphism of sandstone; but some have developed by metasomatic introduction of quartz, SiO2, often accompanied by other chemical elements, for example, metals and sulfur (ore quartzites). The geological relations and the shape of quartzite bodies serve to distinguish between them. The metasomatic quartzites are often found as contact products of intrusive bodies. See also: Metasomatism; Sandstone
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