'Quartzite' definitions:

Definition of 'quartzite'

noun

Hard metamorphic rock consisting essentially of interlocking quartz crystals

Definition of 'Quartzite'

From: GCIDE

Quartzite \Quartz"ite\, n. [Cf. F. quartzite.] (Min.) Massive quartz occurring as a rock; a metamorphosed sandstone; -- called also quartz rock. [1913 Webster]

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