Flow-banded rhyolite.April 30, 2017/in /by Marli Miller specimen, volcanic, lava, igneous, flow foliation https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 20:20:102017-09-05 20:55:49Flow-banded rhyolite.