rhyolite


rhyolite

noun

  1. a fine-grained igneous rock rich in silica: the volcanic equivalent of granite.

noun

  1. a fine-grained igneous rock consisting of quartz, feldspars, and mica or amphibole. It is the volcanic equivalent of granite

  1. A usually light-colored, fine-grained extrusive igneous rock that is compositionally similar to granite. It often includes flow lines formed during the extrusion.

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