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

Rock Salt

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Black Obsidian

Obsidian

Pink Obsidian

Sideromelane

Carbonatite

Tachylite

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt Pebble (Aphanitic Igneous Rock) — igneous

Basalt Pebble

Aphanitic Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Agate (Moss or Plume Agate variety) (Silicon Dioxide (SiO2)) — mineral

Agate (Moss or Plume Agate variety)

Silicon Dioxide (SiO2)

Tumbled basalt pebble (Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase and pyroxene, commonly with olivine) — igneous

Tumbled basalt pebble

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase and pyroxene, commonly with olivine

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Porphyry (Porphyritic Igneous Rock) — igneous

Porphyry

Porphyritic Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Quartz on Host Rock (Silicon Dioxide (SiO2)) — mineral

Quartz on Host Rock

Silicon Dioxide (SiO2)

Weathered basalt pebble (Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar, pyroxene, and commonly olivine) — igneous

Weathered basalt pebble

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar, pyroxene, and commonly olivine

Vesicular basalt (possibly scoriaceous basalt) (Basalt; predominantly plagioclase feldspar, clinopyroxene, and Fe-Ti oxides, with possible olivine) — igneous

Vesicular basalt (possibly scoriaceous basalt)

Basalt; predominantly plagioclase feldspar, clinopyroxene, and Fe-Ti oxides, with possible olivine

Basalt pebble (Basalt; fine-grained mafic volcanic rock, chiefly plagioclase and pyroxene with possible olivine) — igneous

Basalt pebble

Basalt; fine-grained mafic volcanic rock, chiefly plagioclase and pyroxene with possible olivine

Polished basalt pebble (likely vesicular basalt) (Basalt; fine-grained mafic volcanic rock, principally plagioclase and pyroxene with possible olivine and iron oxides) — igneous

Polished basalt pebble (likely vesicular basalt)

Basalt; fine-grained mafic volcanic rock, principally plagioclase and pyroxene with possible olivine and iron oxides

Weathered basalt pebble (Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar, pyroxene, and commonly olivine) — igneous

Weathered basalt pebble

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar, pyroxene, and commonly olivine

Agate (Silicon Dioxide (SiO2)) — sedimentary

Agate

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Agate (Silicon dioxide (SiO2)) — sedimentary

Agate

Silicon dioxide (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — mineral

Agate

Silicon Dioxide (Chalcedony), SiO2

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt with Quartz Vein (Basalt with silicon dioxide (SiO2) inclusion) — igneous

Basalt with Quartz Vein

Basalt with silicon dioxide (SiO2) inclusion

Agate (Silicon dioxide (SiO2)) — gemstone

Agate

Silicon dioxide (SiO2)

Blue Agate (Chalcedony (SiO2)) — gemstone

Blue Agate

Chalcedony (SiO2)