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How are obsidian rocks formed?

Zoe Stewart | 2023-06-07 21:38:39 | page views：1785

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Works at the International Air Transport Association, Lives in Montreal, Canada.

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. Obsidian is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth.

2023-06-11 21:38:39

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Lily Brooks

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: Obsidian - Wikipedia
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