Obsidian in Rhyolite look-alikes

Volcanic glass (Obsidian) within a fine-grained felsic volcanic rock (Rhyolite)

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Several rocks and minerals can be confused with Obsidian in Rhyolite. Below are documented look-alikes and the features that tell them apart. Never rely on a single feature. Always check multiple properties.

Similar rocks to compare

Pumice

Also known as: Volcanic Foam

Scoria

Also known as: Basaltic Pumice

Dacite

Also known as: Quartz Andesite

Andesite

Also known as: Intermediate Volcanic Rock

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