Rock Identifier

Category

Organic (Anthropogenic)

Browse organic (anthropogenic) specimens identified by the Rock Identifier community.

Learn about Organic (Anthropogenic) in the encyclopedia

Sapropel

Bituminous Shale

Bituminous Shale

Black Shale

Petrified Wood

Amber

Jet

Peat

Oil Shale

Pearl

Lizard Skin Jasper

Opalized Wood

Coral Rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Schist (Metamorphic Schist) — metamorphic

Schist

Metamorphic Schist

Schist (Schist (Crystalline Metamorphic Rock)) — metamorphic

Schist

Schist (Crystalline Metamorphic Rock)

Graywacke with Quartz Veins (Argillaceous Sandstone (SiO2 composition in veins)) — sedimentary

Graywacke with Quartz Veins

Argillaceous Sandstone (SiO2 composition in veins)

Granite (Phaneritic plutonic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)

Phyllite (Phyllite (Intermediate grade metamorphic rock)) — metamorphic

Phyllite

Phyllite (Intermediate grade metamorphic rock)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Greenschist (Chlorite schist) — metamorphic

Greenschist

Chlorite schist

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Quartzite (Metamorphic Quartzite) — metamorphic

Quartzite

Metamorphic Quartzite

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Eclogite (Eclogite (composed primarily of Omphacite and Pyrope Garnet)) — metamorphic

Eclogite

Eclogite (composed primarily of Omphacite and Pyrope Garnet)

Granite (Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)

Greenish Metamorphic Rock (likely containing epidote or chlorite) (Metamorphic rock, possibly epidosite or greenstone) — Metamorphic

Greenish Metamorphic Rock (likely containing epidote or chlorite)

Metamorphic rock, possibly epidosite or greenstone

Sandstone (with potential trace fossils) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with potential trace fossils)

Clastic sedimentary rock (primarily SiO2)

Eclogite (Eclogite (Omphacite-Garnet rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet rock)

Quartzite (Metamorphic Quartzite) — metamorphic

Quartzite

Metamorphic Quartzite

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Green Quartzite (Metamorphic Quartz Sandstone (SiO2)) — metamorphic

Green Quartzite

Metamorphic Quartz Sandstone (SiO2)

Eclogite (Eclogite (Omphacite-Garnet Rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet Rock)

Phyllite (Phyllite (regional metamorphic rock)) — metamorphic

Phyllite

Phyllite (regional metamorphic rock)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Schist (Diamond Drill Core) (Mica Schist) — metamorphic

Schist (Diamond Drill Core)

Mica Schist

Greenstone (Metamorphic mafic rock (greenschist facies)) — metamorphic

Greenstone

Metamorphic mafic rock (greenschist facies)

Quartzite Pebble (Metamorphic Quartzite) — metamorphic

Quartzite Pebble

Metamorphic Quartzite

Serpentine ((Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine

(Mg,Fe)3Si2O5(OH)4

Quartzite (Metamorphic Quartz Sandstone) — metamorphic

Quartzite

Metamorphic Quartz Sandstone

Greenstone / Metagraywacke (Metamorphosed basaltic or sedimentary rock (Complex Silicate)) — metamorphic

Greenstone / Metagraywacke

Metamorphosed basaltic or sedimentary rock (Complex Silicate)

Eclogite (Eclogite (Omphacite-Garnet rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet rock)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Mica Schist (Schist (primarily muscovite and quartz)) — metamorphic

Mica Schist

Schist (primarily muscovite and quartz)

Greenschist (Greenschist (Chlorite-actinolite schist)) — metamorphic

Greenschist

Greenschist (Chlorite-actinolite schist)

Greenschist (Greenschist facies metamorphic rock) — metamorphic

Greenschist

Greenschist facies metamorphic rock

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite with inclusions (Metamorphosed quartz sandstone) — metamorphic

Quartzite with inclusions

Metamorphosed quartz sandstone

Diorite (Intermediate Phaneritic Igneous Rock (Diorite)) — igneous

Diorite

Intermediate Phaneritic Igneous Rock (Diorite)

Green Schist (Greenschist (containing Chlorite, Actinolite, and Epidote)) — metamorphic

Green Schist

Greenschist (containing Chlorite, Actinolite, and Epidote)

Amphibolite (Amphibolite (rich in amphibole and plagioclase feldspar)) — metamorphic

Amphibolite

Amphibolite (rich in amphibole and plagioclase feldspar)

Eclogite (Eclogite (Omphacite-Garnet rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet rock)

Eclogite (Eclogite (Omphacite-Garnet rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)