Quartzite



[kwawrt-sahyt] /ˈkwɔrt saɪt/

noun
1.
a granular metamorphic rock consisting essentially of in interlocking grains.
/ˈkwɔːtsaɪt/
noun
1.
a very hard metamorphic rock consisting of a mosaic of intergrown quartz crystals
2.
a white or grey sandstone composed of quartz
n.

1837, from quartz + -ite.
quartzite
(kwôrt’sīt’)
A metamorphic rock consisting entirely of quartz. Quartzite forms when sandstone or chert are heated during metamorphism.

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