Obsidian with phenocrysts look-alikes

Volcanic glass (felsic igneous rock)

Got a photo? Identify rocks instantly with the Rockby app

Several rocks and minerals can be confused with Obsidian with phenocrysts. 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

Obsidian

Also known as: Volcanic Glass

Pumice

Also known as: Volcanic Foam

Scoria

Also known as: Volcanic Cinder

Rhyolite

Also known as: Felsite

Explore Obsidian with phenocrysts

Overview

Full guide to Obsidian with phenocrysts

Identification

Localities & Collecting

Identify rocks anywhere

Free on iOS, Android, and Web. Photo identification, full database, and your personal collection.

Download on theApp Store Get it onGoogle Play Continue onWeb

Open in app