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

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

Porphyritic Basalt (or Andesite) containing Augite (Porphyritic Mafic Volcanic Rock) — igneous

Porphyritic Basalt (or Andesite) containing Augite

Porphyritic Mafic Volcanic Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Rhyolite (Rhyolite (Extrusive Igneous Rock)) — igneous

Rhyolite

Rhyolite (Extrusive Igneous Rock)

Amygdaloidal Basalt (Amygdaloidal Basalt) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt

Porphyritic Basalt (Basalt (with plagioclase phenocrysts)) — igneous

Porphyritic Basalt

Basalt (with plagioclase phenocrysts)

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Vesicular basalt (weathered volcanic rock) (Basalt, chiefly plagioclase feldspar, clinopyroxene, and possibly olivine/iron oxides) — igneous

Vesicular basalt (weathered volcanic rock)

Basalt, chiefly plagioclase feldspar, clinopyroxene, and possibly olivine/iron oxides

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

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

Basalt pebble

Basalt (Mafic Extrusive Igneous Rock)

River-worn Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

River-worn Basalt

Basalt (Mafic Extrusive Igneous Rock)

Pumice (Vesicular volcanic glass (primarily SiO2 with Al2O3)) — Igneous

Pumice

Vesicular volcanic glass (primarily SiO2 with Al2O3)

Basalt (Basalt) — Igneous

Basalt

Basalt

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Chalcedony (Agate/Carnelian) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Carnelian)

Silicon Dioxide (SiO2)

Vesicular Basalt (Extrusive Mafic Igneous Rock) — igneous

Vesicular Basalt

Extrusive Mafic Igneous Rock

Porphyritic Basalt (Porphyritic Basalt (containing Plagioclase phenocrysts)) — igneous

Porphyritic Basalt

Porphyritic Basalt (containing Plagioclase phenocrysts)

Peridotite (Olivine/Peridot) (Peridotite (comprising (Mg,Fe)2SiO4)) — igneous

Peridotite (Olivine/Peridot)

Peridotite (comprising (Mg,Fe)2SiO4)

Basalt (Vesicular) (Basalt) — igneous

Basalt (Vesicular)

Basalt

Basalt River Pebble (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt River Pebble

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (River Stone) (Extrusive Mafic Igneous Rock (Basalt)) — igneous

Basalt (River Stone)

Extrusive Mafic Igneous Rock (Basalt)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

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

Red Scoria (Lava Rock)

Scoria (Vesicular Basalt)

Basalt Pebble (Extrusive igneous rock (Mafic)) — igneous

Basalt Pebble

Extrusive igneous rock (Mafic)

Blue Lace Agate (Geode/Druzy variant) (Chalcedony (SiO2) with Quartz druzy) — mineral

Blue Lace Agate (Geode/Druzy variant)

Chalcedony (SiO2) with Quartz druzy

Basalt (Glassy) (Basalt (Aphanitic-Glassy texture)) — igneous

Basalt (Glassy)

Basalt (Aphanitic-Glassy texture)

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Red Quartz (Carnelian/Red Jasper Agate) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Red Quartz (Carnelian/Red Jasper Agate)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Basalt (River Pebble) (Extrusive mafic igneous rock) — igneous

Basalt (River Pebble)

Extrusive mafic igneous rock

Vesicular Basalt (Vesicular Basalt) — igneous

Vesicular Basalt

Vesicular Basalt

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt Fragment (Extrusive Igneous Rock) — igneous

Basalt Fragment

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