rhyolite Hear it!

rhyolite definition

rhyo·lite (rī′ə līt′)

noun

a light-colored igneous rock with a fine-grained, granitelike texture

Etymology: Ger rhyolit < Gr rhyax, stream (of lava) + lithos, stone

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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