Rock Identifier

Category

Anthropogenic (Man Made Material)

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

Learn about Anthropogenic (Man Made Material) in the encyclopedia

Opalite

Goldstone

Peat

Map Jasper

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Dunite

Andalusite

Zincite

Marl

Limonite

Diamond

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Coquina / Fossiliferous Limestone (Bioclastic Limestone (CaCO3)) — sedimentary

Coquina / Fossiliferous Limestone

Bioclastic Limestone (CaCO3)

Sandstone (Quartzose Sandstone) (Sandstone (SiO2 with various trace minerals)) — sedimentary

Sandstone (Quartzose Sandstone)

Sandstone (SiO2 with various trace minerals)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Quartzite pebble (Metamorphic rock (mainly SiO2)) — metamorphic

Quartzite pebble

Metamorphic rock (mainly SiO2)

Sandstone (Ferruginous) (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with Fe2O3)

Puddingstone (Conglomerate) — Sedimentary

Puddingstone

Conglomerate

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

Sandstone

Arenite (composed primarily of SiO2)

Sunstone (Oligoclase or Andesine (Feldspar Group), (Ca,Na)((Al,Si)4O8)) — mineral

Sunstone

Oligoclase or Andesine (Feldspar Group), (Ca,Na)((Al,Si)4O8)

Quartzite (Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Quartzite (predominantly SiO2)

Sandstone (Arenite (typically SiO2 + others)) — sedimentary

Sandstone

Arenite (typically SiO2 + others)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Limestone with Fossil inclusions (Fossiliferous Limestone (CaCO3)) — sedimentary

Limestone with Fossil inclusions

Fossiliferous Limestone (CaCO3)

Fossilized Sea Urchin (Echinoid) (Echinoidea (Fossil specimen, often replaced by Calcite or Silica)) — sedimentary

Fossilized Sea Urchin (Echinoid)

Echinoidea (Fossil specimen, often replaced by Calcite or Silica)

Sandstone (Greywacke/Lithic Sandstone) (Clastic Sedimentary Rock (Lithic Sandstone)) — sedimentary

Sandstone (Greywacke/Lithic Sandstone)

Clastic Sedimentary Rock (Lithic Sandstone)

Conglomerate (Conglomerate) — sedimentary

Conglomerate

Conglomerate

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

Granite River Rock

Phaneritic Felsic Igneous Rock (Granite)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Polygenetic Conglomerate (or Breccia) (Clastic Sedimentary Rock) — sedimentary

Polygenetic Conglomerate (or Breccia)

Clastic Sedimentary Rock

Sandstone (with Arkose characteristics) (Clastic sedimentary rock (SiO2 with KAlSi3O8)) — sedimentary

Sandstone (with Arkose characteristics)

Clastic sedimentary rock (SiO2 with KAlSi3O8)

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

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone Cobble (Arenite (Secondary classification based on grain size)) — sedimentary

Sandstone Cobble

Arenite (Secondary classification based on grain size)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 cementation)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 cementation)

River Jasper (Chert/Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

River Jasper (Chert/Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

River Pebble (Quartz-rich) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

River Pebble (Quartz-rich)

Silicon Dioxide (SiO2) with various inclusions

Sandstone (Calcareous or Ferruginous) (Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)) — sedimentary

Sandstone (Calcareous or Ferruginous)

Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)

Limestone (Calcareous sedimentary rock (primarily Calcium Carbonate, CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (primarily Calcium Carbonate, CaCO3)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Crazy Lace Agate (Microcrystalline Quartz (SiO2)) — sedimentary

Crazy Lace Agate

Microcrystalline Quartz (SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Banded) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Banded)

Clastic sedimentary rock (primarily SiO2)

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

Sandstone (likely Quartzose Sandstone)

Arenite (composed primarily of SiO2)

Quartz (Chert/Chalcedony variant) (Silicon dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony variant)

Silicon dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (with potential iron mineralization) (Arenite) — sedimentary

Sandstone (with potential iron mineralization)

Arenite

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Septarian Nodule (Dragon Stone) (Septarian Concretion (CaCO3 with Calcite, Aragonite, and Limestone/Bentonite)) — sedimentary

Septarian Nodule (Dragon Stone)

Septarian Concretion (CaCO3 with Calcite, Aragonite, and Limestone/Bentonite)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite