Image: Flow-banded rhyolite

Flow-banded rhyolite

Flow-banded rhyolite (15 cm x 11 cm), Pokolbin, Hunter Valley District, New South Wales.

Photographer:
Stuart Humphreys
Rights:
© Australian Museum

Notes

Rhyolite is a silicic, acidic volcanic rock composed of quartz and alkali feldspar, with minor plagioclase and/or biotite. It is the volcanic equivalent of granite.

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Tags rhyolite, volcanic rock, igneous rocks, volcanic, volcanoes, mineralogy, geosciences,