Rock Identifier

Category

Igneous Rock (Volcanic Glass)

Browse igneous rock (volcanic glass) specimens identified by the Rock Identifier community.

Learn about Igneous Rock (Volcanic Glass) in the encyclopedia

Rock Gypsum

Coral Rock

Asphalt Rock

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Black Obsidian

Obsidian

Pink Obsidian

Sideromelane

Carbonatite

Tachylite

Perlite (Unexpanded) (Amorphous volcanic glass) — igneous

Perlite (Unexpanded)

Amorphous volcanic glass

Basalt (Basalt (extrusive volcanic rock)) — igneous

Basalt

Basalt (extrusive volcanic rock)

Porphyritic Andesite (Andesite (Porphyritic texture)) — igneous

Porphyritic Andesite

Andesite (Porphyritic texture)

Scoria (Lava Rock) (Vesicular Basalt / Scoria) — igneous

Scoria (Lava Rock)

Vesicular Basalt / Scoria

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Weathered Pebble) (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt (Weathered Pebble)

Basalt (Mafic Extrusive Igneous Rock)

Vesicular Basalt (or Scoria) (Vesicular Basalt) — igneous

Vesicular Basalt (or Scoria)

Vesicular Basalt

Scoria (Lava Rock) (Scoria (Mafic volcanic rock)) — igneous

Scoria (Lava Rock)

Scoria (Mafic volcanic rock)

Pumice (Pumice (a highly vesicular amorphous silicate)) — igneous

Pumice

Pumice (a highly vesicular amorphous silicate)

Porphyritic Basalt or Porphyritic Andesite (Extrusive igneous rock with porphyritic texture) — igneous

Porphyritic Basalt or Porphyritic Andesite

Extrusive igneous rock with porphyritic texture

Basalt Pebble (Aphanitic Mafic Igneous Rock) — igneous

Basalt Pebble

Aphanitic Mafic Igneous Rock

Amygdaloidal Basalt (Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)) — igneous

Amygdaloidal Basalt

Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)

Basalt Pebble (Aphanitic Mafic Igneous Rock) — igneous

Basalt Pebble

Aphanitic Mafic Igneous Rock

Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Pumice (Pumice (Felsic volcanic rock)) — igneous

Pumice

Pumice (Felsic volcanic rock)

Possible dark igneous rock (Indeterminate; likely basalt or fine-grained mafic rock) — igneous

Possible dark igneous rock

Indeterminate; likely basalt or fine-grained mafic rock

Basalt Pebble (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt Pebble

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Basalt) — igneous

Basalt

Basalt

Pumice (Pumice (Volcanic Glass)) — igneous

Pumice

Pumice (Volcanic Glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Blue) (Volcanic Glass (SiO2)) — igneous

Obsidian (Blue)

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian with Perlitic Crust (Volcanic Glass (SiO2)) — igneous

Obsidian with Perlitic Crust

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

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)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

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

Obsidian (Apache Tear)

Volcanic Glass (SiO2)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Black Obsidian (Volcanic Glass (SiO2)) — igneous

Black Obsidian

Volcanic Glass (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)