Rock Identifier

Category

Glass

Browse glass specimens identified by the Rock Identifier community.

Learn about Glass in the encyclopedia

Sideromelane

Sideromelane

Black Obsidian

Black Obsidian

Maskelynite

Maskelynite

Obsidian

Obsidian

Tachylite

Tachylite

Hyalite Opal

Hyalite Opal

Macusanite

Macusanite

Perlite

Perlite

Opalite

Opalite

Pink Obsidian

Pink Obsidian

Goldstone

Goldstone

Palagonite

Palagonite

Black Obsidian (Volcanic Glass (SiO2)) — igneous

Black Obsidian

Volcanic Glass (SiO2)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Obsidian with Matrix (Volcanic Glass (SiO2)) — igneous

Obsidian with Matrix

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (volcanic glass)) — Igneous

Obsidian

Obsidian (volcanic glass)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

Obsidian (Obsidian (volcanic glass)) — igneous

Obsidian

Obsidian (volcanic glass)

Quartz (Milky/Crystalline variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Mineral Specimens (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Mineral Specimens

Quartz (Silicon Dioxide, SiO2)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Flint (Chert (SiO2)) — sedimentary

Flint

Chert (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian Arrowhead (Obsidian (Volcanic Glass)) — igneous

Obsidian Arrowhead

Obsidian (Volcanic Glass)

Pumice (Pumiceous volcanic glass) — igneous

Pumice

Pumiceous volcanic glass

Opalite (Synthetic Opalite Glass) — mineraloid (man-made)

Opalite

Synthetic Opalite Glass

mineraloid (man-made)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Obsidian (Tumbled Apache Tear) (Volcanic Glass (SiO2)) — igneous

Obsidian (Tumbled Apache Tear)

Volcanic Glass (SiO2)

Pumice (Pumiceous volcanic glass) — igneous

Pumice

Pumiceous volcanic glass

Black Obsidian (Volcanic Glass (SiO2)) — igneous

Black Obsidian

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

Pumice (Pumice (volcanic glass)) — igneous

Pumice

Pumice (volcanic glass)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Pumice (specifically a water-worn, weathered variety) (Vesicular volcanic glass) — igneous

Pumice (specifically a water-worn, weathered variety)

Vesicular volcanic glass

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Apache Tears (Obsidian) (Volcanic Glass (SiO2)) — igneous

Apache Tears (Obsidian)

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Volcanic glass (SiO2)) — igneous

Obsidian

Volcanic glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — Igneous

Obsidian

Obsidian (Volcanic Glass)