Rock Identifier

Category

Not A Natural Rock

Browse not a natural rock specimens identified by the Rock Identifier community.

Basalt River Pebble (Mafic Igneous Rock (Fine-grained Basalt)) — igneous

Basalt River Pebble

Mafic Igneous Rock (Fine-grained Basalt)

Coarse-grained Granite (Phaneritic Granite (contains Quartz, Feldspar, and Mica)) — igneous

Coarse-grained Granite

Phaneritic Granite (contains Quartz, Feldspar, and Mica)

Vesicular Basalt with Xenocrysts (Mafic Igneous Plutonic/Extrusive Complex) — igneous

Vesicular Basalt with Xenocrysts

Mafic Igneous Plutonic/Extrusive Complex

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

Basalt with Iron Oxidation

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Serpentinite (Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)) — metamorphic

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)

Basalt with Iron Oxidation (Vesicular Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt with Iron Oxidation

Vesicular Basalt (Aphanitic Mafic Igneous Rock)

Basalt with Quartz Veins (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Quartz Veins

Basalt (SiO2 range 45-52%)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt (composition: Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition: Plagioclase, Pyroxene, and Olivine)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Granite (Granite (a felsic intrusive igneous rock)) — Igneous Rock

Granite

Granite (a felsic intrusive igneous rock)

Breciated Chert (Brecciated Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Breciated Chert

Brecciated Chert (Microcrystalline Quartz, SiO2)

Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Metamorphic Rock)

Basalt River Stone (Basalt (Aphanitic Mafic Volcanic Rock)) — igneous

Basalt River Stone

Basalt (Aphanitic Mafic Volcanic Rock)

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

Basalt River Pebble

Basalt (Aphanitic Mafic Igneous Rock)

Basalt with Vesicles (Aphanitic Mafic Volcanic Rock (Basalt)) — igneous

Basalt with Vesicles

Aphanitic Mafic Volcanic Rock (Basalt)

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

Basalt River Cobble

Basalt (Mafic Extrusive Igneous Rock)

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

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt) (Porphyritic Basalt (Mafic volcanic rock)) — igneous

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt)

Porphyritic Basalt (Mafic volcanic rock)

Grey Basalt Pebble (Basalt (Aphanitic Mafic Volcanic Rock)) — igneous

Grey Basalt Pebble

Basalt (Aphanitic Mafic Volcanic Rock)

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

Basalt (River Stone)

Extrusive Mafic Igneous Rock (Basalt)

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

Basalt (Crushed Stone)

Basalt (Mafic Extrusive Igneous Rock)

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Polished River Stone) (Basalt (Extrusive Mafic Volcanic Rock)) — igneous

Basalt (Polished River Stone)

Basalt (Extrusive Mafic Volcanic Rock)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Arenite (composed mainly of SiO2)) — sedimentary

Sandstone

Arenite (composed mainly of SiO2)

Scoria (Red Lava Rock) (Scoria (Extrusive Igneous Rock)) — Igneous

Scoria (Red Lava Rock)

Scoria (Extrusive Igneous Rock)

Granite Pebble (River Rock) (Phaneritic Felsic Igneous Rock) — igneous

Granite Pebble (River Rock)

Phaneritic Felsic Igneous Rock

Lapis Lazuli (Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2) — Metamorphic rock

Lapis Lazuli

Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Metamorphic rock

Red Shale (Fissile Siliciclastic Sedimentary Rock) — sedimentary

Red Shale

Fissile Siliciclastic Sedimentary Rock

Dragon Blood Jasper (Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))) — metamorphic

Dragon Blood Jasper

Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))

Basalt River Pebble (Mafic volcanic rock (Basalt)) — igneous

Basalt River Pebble

Mafic volcanic rock (Basalt)

Basalt (Basalt (High-iron/magnesium silicate rock)) — igneous

Basalt

Basalt (High-iron/magnesium silicate rock)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Basalt (River Pebble) (Basalt) — igneous

Basalt (River Pebble)

Basalt

Shungite (Non-crystalline carbon (similar to anthracite coal or meta-anthracite)) — metamorphic

Shungite

Non-crystalline carbon (similar to anthracite coal or meta-anthracite)

Scoria (Lava Rock) (Scoria) — igneous

Scoria (Lava Rock)

Scoria

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Banded) (Clastic Sedimentary Rock: Arenite) — sedimentary

Sandstone (Banded)

Clastic Sedimentary Rock: Arenite

Granite (Weathered) (Phaneritic Felsic Igneous Rock) — Igneous

Granite (Weathered)

Phaneritic Felsic Igneous Rock

Scoria (Vesicular Basalt) (Scoria (Extrusive Igneous Rock)) — igneous

Scoria (Vesicular Basalt)

Scoria (Extrusive Igneous Rock)