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Random pictures

Illustrated Volcano Glossary

rhyolite

Volcanology
Rhyolite from Milos island (Greece)
Rhyolite from Milos island (Greece)
A type of highly viscous magma with high silica content; it is found as pumice (in airfall deposits or ignimbrites), lava or obsidian. Rhyolite is also the name given to the volcanic rock formed from rhyolitic magma.

 

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