Rock Identifier

Category

Sedimentary (Physico Chemical Precipitate)

Browse sedimentary (physico chemical precipitate) specimens identified by the Rock Identifier community.

Sandstone (Arenite (Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Sedimentary Rock)

Conglomerate (Conglomerative Sedimentary Rock) — sedimentary

Conglomerate

Conglomerative Sedimentary Rock

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

Conglomerate (or Breccia)

Clastic Sedimentary Rock

Sandstone (likely Graywacke or Lithic Sandstone) (Clastic Sedimentary Rock) — sedimentary

Sandstone (likely Graywacke or Lithic Sandstone)

Clastic Sedimentary Rock

Conglomerate (Conglomerate (Sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (Sedimentary rock)

River Pebble (Siltstone/Mudstone) (Clastic sedimentary rock) — sedimentary

River Pebble (Siltstone/Mudstone)

Clastic sedimentary rock

River Rock (likely Siltstone or fine-grained Sandstone) (Clastic Sedimentary Rock) — sedimentary

River Rock (likely Siltstone or fine-grained Sandstone)

Clastic Sedimentary Rock

Conglomerate (Clastic sedimentary conglomerate) — sedimentary

Conglomerate

Clastic sedimentary conglomerate

Shale (Lutaceous Sedimentary Rock) — sedimentary

Shale

Lutaceous Sedimentary Rock

Snowflake Obsidian (Volcanic Glass with Spherulite inclusions (Chemical composition: 70–75% SiO2 + MgO, Fe3O4)) — igneous

Snowflake Obsidian

Volcanic Glass with Spherulite inclusions (Chemical composition: 70–75% SiO2 + MgO, Fe3O4)

Geode (Unopened) (Siliceous Septarian Concretion / Geode (SiO2)) — sedimentary

Geode (Unopened)

Siliceous Septarian Concretion / Geode (SiO2)

Gastropod Fossil (Internal Mold) (Phylum Mollusca, Class Gastropoda (Steinkern)) — sedimentary

Gastropod Fossil (Internal Mold)

Phylum Mollusca, Class Gastropoda (Steinkern)

Selenite (Satin Spar) (Gypsum (CaSO4·2H2O)) — mineral

Selenite (Satin Spar)

Gypsum (CaSO4·2H2O)

Jade (likely Nephrite or Jadeite) (Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)) — Metamorphic rock (for Nephrite and some Jadeite); Mineral (for Jadeite)

Jade (likely Nephrite or Jadeite)

Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Metamorphic rock (for Nephrite and some Jadeite); Mineral (for Jadeite)

Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

Sandstone (likely Arkosic) (Clastic Sedimentary Rock (primarily SiO2 with Feldspar)) — sedimentary

Sandstone (likely Arkosic)

Clastic Sedimentary Rock (primarily SiO2 with Feldspar)

Sandstone or Mudstone (Sedimentary Rock (Sandstone/Mudstone)) — sedimentary

Sandstone or Mudstone

Sedimentary Rock (Sandstone/Mudstone)

Sandstone (Banded) (Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)) — sedimentary

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)

Pyrite in Matrix (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (Fool's Gold)

Iron Sulfide (FeS2)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Pyrite (on Shale/Matrix) (Iron Disulfide (FeS2)) — mineral

Pyrite (on Shale/Matrix)

Iron Disulfide (FeS2)

Quartzite (Quartzite) — Metamorphic rock

Quartzite

Quartzite

Metamorphic rock

Limestone (Weathered) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (Weathered)

Calcium Carbonate (CaCO3)

Quartz on Sandstone (Silicon Dioxide (SiO2) in Lithic Sandstone) — sedimentary

Quartz on Sandstone

Silicon Dioxide (SiO2) in Lithic Sandstone

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Arenite (SiO2 principal component)) — sedimentary

Sandstone

Arenite (SiO2 principal component)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone (likely Arkose or Quartz Sandstone) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (likely Arkose or Quartz Sandstone)

Clastic sedimentary rock (primarily SiO2)

Fish Fossil in Limestone (Lycoptera (likely) in Micritic Limestone) — sedimentary

Fish Fossil in Limestone

Lycoptera (likely) in Micritic Limestone

Sandstone (Quartzite Pebble) (Arenite (SiO2)) — sedimentary

Sandstone (Quartzite Pebble)

Arenite (SiO2)

Limonite stained Sandstone (Sedimentary rock with Goethite/Limonite (FeO(OH)·nH2O)) — sedimentary

Limonite stained Sandstone

Sedimentary rock with Goethite/Limonite (FeO(OH)·nH2O)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (likely Calcareous or Micaceous) (Clastic sedimentary rock (primarily Quartz with Cementing Agents)) — sedimentary

Sandstone (likely Calcareous or Micaceous)

Clastic sedimentary rock (primarily Quartz with Cementing Agents)

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

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)

Shale (Laminated Mudstone) — sedimentary

Shale

Laminated Mudstone

Red Jasper (possibly Agatized Jasper) (Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)) — sedimentary

Red Jasper (possibly Agatized Jasper)

Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)

Magnetite Sand (Black Sand) (Magnetite (Fe3O4)) — mineral

Magnetite Sand (Black Sand)

Magnetite (Fe3O4)

Sandstone or Mudstone with Iron Staining (Ferruginous Sandstone/Mudstone) — Sedimentary

Sandstone or Mudstone with Iron Staining

Ferruginous Sandstone/Mudstone

Quartz Vein in Sedimentary Rock (Silicon Dioxide (SiO2) with host Chert or Limestone) — mineral

Quartz Vein in Sedimentary Rock

Silicon Dioxide (SiO2) with host Chert or Limestone

Crinoid Marble (Fossilized Limestone) (Crinoidal Limestone (comprising Calcite/Aragonite CaCO3)) — sedimentary

Crinoid Marble (Fossilized Limestone)

Crinoidal Limestone (comprising Calcite/Aragonite CaCO3)