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Rhyolite vs Dacite - What's the difference?

rhyolite | dacite |

In geology terms the difference between rhyolite and dacite

is that rhyolite is an igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture while dacite is an igneous, volcanic rock with a high iron content.

rhyolite

English

Noun

(wikipedia rhyolite)
  • (geology) An igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture.

    • Derived terms

    * rhyolitic

    dacite

    English

    (wikipedia dacite)

    Noun

    (en noun)
  • (geology) An igneous, volcanic rock with a high iron content.

    • Derived terms

    * dacitic