Rock Identifier

Category

Mineral And Sedimentary

Browse mineral and sedimentary specimens identified by the Rock Identifier community.

Learn about Mineral And Sedimentary in the encyclopedia

Coal

Conglomerate

Glauconite

Quartzite Sandstone

Quartzite Sandstone

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Sandstone (likely Arkose or Lithic) (Clastic sedimentary rock (SiO2 + impurities)) — sedimentary

Sandstone (likely Arkose or Lithic)

Clastic sedimentary rock (SiO2 + impurities)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Shale (Fissile Siliciclastic Sedimentary Rock) — sedimentary

Shale

Fissile Siliciclastic Sedimentary Rock

Sandstone (Arenite (Clastic Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Clastic Sedimentary Rock)

Sandstone (Ferruginous) (Arenite (SiO2 based with Fe2O3 banding)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 based with Fe2O3 banding)

Mixed Mineral and Fossil Collection (Multi-specimen assemblage (SiO2, CaCO3, FeS2, etc.)) — mineral

Mixed Mineral and Fossil Collection

Multi-specimen assemblage (SiO2, CaCO3, FeS2, etc.)

Black Opal (Triplet) (Hydrated Silica (SiO2·nH2O)) — mineral

Black Opal (Triplet)

Hydrated Silica (SiO2·nH2O)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Sandstone (Sedimentary Clastic Rock) — sedimentary

Sandstone

Sedimentary Clastic Rock

Shark Tooth Fossil (Carcharocles megalodon or similar extinct shark tooth) — fossil

Shark Tooth Fossil

Carcharocles megalodon or similar extinct shark tooth

Sandstone (Heart-shaped pebble) (Sedimentary Quartz Sandstone) — sedimentary

Sandstone (Heart-shaped pebble)

Sedimentary Quartz Sandstone

Botryoidal Hematite (Iron(III) oxide (Fe2O3)) — mineral

Botryoidal Hematite

Iron(III) oxide (Fe2O3)

Shale (Fissile mudrock (composed primarily of clay minerals and quartz)) — sedimentary

Shale

Fissile mudrock (composed primarily of clay minerals and quartz)

Limonite (Limonitic Sandstone) (Hydrated Iron(III) Oxide-Hydroxide ($FeO(OH)·nH_2O$)) — sedimentary

Limonite (Limonitic Sandstone)

Hydrated Iron(III) Oxide-Hydroxide ($FeO(OH)·nH_2O$)

Vein-filled Sedimentary Rock (Silicified sedimentary rock with quartz/calcite vein) — sedimentary

Vein-filled Sedimentary Rock

Silicified sedimentary rock with quartz/calcite vein

Red Jasper (or Banded Jasper) (Silicon Dioxide (SiO2 with Hematite impurities)) — mineral

Red Jasper (or Banded Jasper)

Silicon Dioxide (SiO2 with Hematite impurities)

Barite Rose on Marcasite (Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)) — mineral

Barite Rose on Marcasite

Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)

Quartz Geode (Silicon Dioxide (SiO2) in Geode form) — mineral

Quartz Geode

Silicon Dioxide (SiO2) in Geode form

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

Pyrite (on Shale/Matrix)

Iron Disulfide (FeS2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Magnetite (Fe3O4 (Iron(II,III) oxide)) — mineral

Magnetite

Fe3O4 (Iron(II,III) oxide)

Sandstone / Weathered Quartzite (Sandstone (Quartz Arenite)) — sedimentary

Sandstone / Weathered Quartzite

Sandstone (Quartz Arenite)

Sandstone (Sandstone (composed primarily of sand-sized minerals or rock grains)) — sedimentary

Sandstone

Sandstone (composed primarily of sand-sized minerals or rock grains)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Mixed Mineral Collection (Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)) — mineral

Mixed Mineral Collection

Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)

Quartzite Sandstone / Quartz Sandstone (Quartz Sandstone (SiO2 with minor mineral impurities)) — sedimentary

Quartzite Sandstone / Quartz Sandstone

Quartz Sandstone (SiO2 with minor mineral impurities)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Common Pebble / Sedimentary Rock Fragment (Lithified clastic sediment) — sedimentary

Common Pebble / Sedimentary Rock Fragment

Lithified clastic sediment

Blue Apatite (Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Ca5(PO4)3(F,Cl,OH)

Geode (Quartz / Chalcedony nodule) — sedimentary

Geode

Quartz / Chalcedony nodule

Ironstone (likely Limonite or Goethite nodule) (Hydrothermally altered Ferric Hydroxide (FeO(OH)·nH2O)) — sedimentary

Ironstone (likely Limonite or Goethite nodule)

Hydrothermally altered Ferric Hydroxide (FeO(OH)·nH2O)

Limonite with Hematite (Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)) — mineral

Limonite with Hematite

Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)

Pyrite in Matrix (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix

Iron Sulfide (FeS2)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Breciated Limestone with Calcite Veins (Sedimentary Breccia (CaCO3)) — sedimentary

Breciated Limestone with Calcite Veins

Sedimentary Breccia (CaCO3)

Red jasper (Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides) — mineral

Red jasper

Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

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

Sandstone (Quartz Sandstone)

Arenite (primarily SiO2)

Geode (Silicon dioxide (Quartz/Chalcedony) concretion) — sedimentary

Geode

Silicon dioxide (Quartz/Chalcedony) concretion