Hypertext Webster Gateway: "quartzite"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Quartzite \Quartz"ite\, n. [Cf. F. quartzite.] (Min.)
Massive quartz occurring as a rock; a metamorphosed
sandstone; -- called also {quartz rock}.
From WordNet (r) 1.7 (wn)
quartzite
n : hard metamorphic rock consisting essentially of interlocking
quartz crystals
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