Rock Identifier

Category

Not A Rock

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

Learn about Not A Rock in the encyclopedia

Rock Gypsum

Rock Gypsum

Rock Salt

Rock Salt

Coral Rock

Coral Rock

Asphalt Rock

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Cataclasite

Cataclasite

Anorthosite

Anorthosite

Gondite

Gondite

Peridotite

Peridotite

Epidosite

Epidosite

Phosphorite

Phosphorite

Yellow Quartzite (Metamorphic Rock (Mainly SiO2)) — metamorphic

Yellow Quartzite

Metamorphic Rock (Mainly SiO2)

Granite (Plutonic felsic igneous rock) — igneous

Granite

Plutonic felsic igneous rock

Sandstone (Arenite (Clastic Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Clastic Sedimentary Rock)

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Pink Granite (Granite (Phaneritic intrusive rock)) — igneous

Pink Granite

Granite (Phaneritic intrusive rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Andesite (Andesite (Intermediate Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Volcanic Rock)

Granodiorite (Phaneritic Plutonic Rock (Intermediate)) — igneous

Granodiorite

Phaneritic Plutonic Rock (Intermediate)

Andesite (Andesite (Intermediate Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Volcanic Rock)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Basalt (Basalt (extrusive igneous rock)) — Igneous

Basalt

Basalt (extrusive igneous rock)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

River Rock (Gneiss/Schist mix) (Foliated Metamorphic Rock (Gneiss)) — metamorphic

River Rock (Gneiss/Schist mix)

Foliated Metamorphic Rock (Gneiss)

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

Sandstone

Arenite (composed mainly of SiO2)

Sandstone (Quartz-rich) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartz-rich)

Arenite (primarily SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone Flagstone (Arenite (SiO2 with various cementing agents)) — sedimentary

Sandstone Flagstone

Arenite (SiO2 with various cementing agents)

Banded Agate (Agate (Cryptocrystalline Quartz, SiO2)) — mineral

Banded Agate

Agate (Cryptocrystalline Quartz, SiO2)

Sandstone (with Iron Staining) (Arenite) — sedimentary

Sandstone (with Iron Staining)

Arenite

Green Aventurine (Silicon Dioxide (Quartz) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (Quartz) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Chert (Agatized) (Silicon dioxide (SiO2)) — sedimentary

Chert (Agatized)

Silicon dioxide (SiO2)

Granite (Granite (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)

Hematite Nodules (Moqui Marbles style) (Iron Oxide (Fe2O3)) — mineral

Hematite Nodules (Moqui Marbles style)

Iron Oxide (Fe2O3)

Chert (Quartz Variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Quartz Variety)

Silicon Dioxide (SiO2)

Sandstone (Red/Brown) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (Red/Brown)

Arenite (composed primarily of SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

White Marble (Recrystallized Calcite (CaCO3) / Marble) — metamorphic

White Marble

Recrystallized Calcite (CaCO3) / Marble

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Chert (Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (Silicon dioxide (SiO2) - Microcrystalline quartz) — Sedimentary

Chert

Silicon dioxide (SiO2) - Microcrystalline quartz

Carnelian Agate (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian Agate

Carnelian (Silicon Dioxide - SiO2)

River Pebble (Quartz/Sandstone) (Silicon Dioxide (SiO2) Mix) — sedimentary

River Pebble (Quartz/Sandstone)

Silicon Dioxide (SiO2) Mix

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

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Agate (Silicon dioxide (SiO2) - variety Chalcedony) — mineral

Agate

Silicon dioxide (SiO2) - variety Chalcedony

Chert (Silicon dioxide (SiO2)) — Sedimentary

Chert

Silicon dioxide (SiO2)

Sandstone (Arenite (primarily Quartz, SiO2)) — sedimentary

Sandstone

Arenite (primarily Quartz, SiO2)

Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)