Rock Identifier

Category

Man Made Material (Constructed)

Browse man made material (constructed) specimens identified by the Rock Identifier community.

Labradorite (Polished Crystal Point) (Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8) — mineral

Labradorite (Polished Crystal Point)

Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

River Stone (Quartzite/Siltstone mixture) (Silicon Dioxide (SiO2) based metamorphosed sandstone) — metamorphic or sedimentary

River Stone (Quartzite/Siltstone mixture)

Silicon Dioxide (SiO2) based metamorphosed sandstone

metamorphic or sedimentary

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Granite Cobble (Granite (Phaneritic Quartz-Feldspar-Mica intrusive rock)) — igneous

Granite Cobble

Granite (Phaneritic Quartz-Feldspar-Mica intrusive rock)

Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Conglomerate with Native Copper (Clastic Sedimentary Rock with Native Copper (Cu)) — sedimentary

Conglomerate with Native Copper

Clastic Sedimentary Rock with Native Copper (Cu)

Sandstone (Quartzose Sandstone) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Schist (with Iron Oxide) (Mica Schist) — metamorphic

Schist (with Iron Oxide)

Mica Schist

Quartz Vein in Metamorphic Rock (Silicon Dioxide (SiO2) within Metasedimentary host) — metamorphic

Quartz Vein in Metamorphic Rock

Silicon Dioxide (SiO2) within Metasedimentary host

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Gypsum Wallboard (Drywall) (Hydrous calcium sulfate (CaSO4·2H2O)) — sedimentary (processed mineral product)

Gypsum Wallboard (Drywall)

Hydrous calcium sulfate (CaSO4·2H2O)

sedimentary (processed mineral product)

Quartz (Milky/Crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline)

Silicon Dioxide (SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

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

Sandstone (Quartz-rich)

Arenite (SiO2 based)

Greenschist (Greenschist facies rock (containing chlorite, actinolite, and epidote)) — metamorphic

Greenschist

Greenschist facies rock (containing chlorite, actinolite, and epidote)

Red Sandstone (Arkose) (Clastic Sedimentary Rock (Lithic Arkose)) — sedimentary

Red Sandstone (Arkose)

Clastic Sedimentary Rock (Lithic Arkose)

Sandstone (Quartz-rich) (Arenite (composed mainly of SiO2)) — sedimentary

Sandstone (Quartz-rich)

Arenite (composed mainly of SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Gneiss (Banded Gneiss) (Gneiss) — metamorphic

Gneiss (Banded Gneiss)

Gneiss

Metaconglomerate (Metaconglomerate (Quartzite conglomerate)) — metamorphic

Metaconglomerate

Metaconglomerate (Quartzite conglomerate)

Sandstone (clastic) (Clastic Sedimentary Rock (primarily composed of SiO2)) — sedimentary

Sandstone (clastic)

Clastic Sedimentary Rock (primarily composed of SiO2)

Quartzite (Iron-stained) (Quartzite (SiO2 with Fe-oxides)) — metamorphic

Quartzite (Iron-stained)

Quartzite (SiO2 with Fe-oxides)

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

Sandstone

Arenite (composed primarily of SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Sandstone (with potential trace fossils)

Clastic sedimentary rock (primarily SiO2)

Sandstone (Ferruginous) (Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Sandstone (Ferruginous) (Arenite (SiO2 with iron oxide impurities)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with iron oxide impurities)

Fossiliferous Sedimentary Rock (Coquina/Limestone) (Fossiliferous Calcarenite / Bioclastic Limestone) — sedimentary

Fossiliferous Sedimentary Rock (Coquina/Limestone)

Fossiliferous Calcarenite / Bioclastic Limestone

Puddingstone (Conglomerate) (Conglomerate (clastic sedimentary rock)) — sedimentary

Puddingstone (Conglomerate)

Conglomerate (clastic sedimentary rock)

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Sandstone (Quartzite-rich) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite-rich)

Clastic Sedimentary Rock (primarily SiO2)

Chert (Iron-stained) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

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

Basalt (Weathered)

Extrusive Igneous Rock (Mafic composition)

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

Chert (Nodule)

Silicon Dioxide (SiO2)

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Chert (Jasper/Flint variety) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline quartz (SiO2)

Chert (Jasper/Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variant)

Microcrystalline Quartz (SiO2)

Chert (Flint Nodules) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint Nodules)

Silicon Dioxide (SiO2)

Banded Chert (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)