Sandstone
Arenite (primarily SiO2)
Category
Browse sedimentary (man made) specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily SiO2)
Limestone Cobble
Sedimentary Calcium Carbonate (CaCO3)
Limestone (Buff/Tan)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Limestone (Weathered)
Sedimentary Carbonate Rock (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Ferruginous Sandstone (Ironstone)
Ferruginous Sandstone / Limonite-cemented Quartz Sandstone
Sandstone pebble
Sandstone (arenite / quartzarenite)
Sandstone (with Iron Staining)
Sandstone (mainly Quartz, SiO2, with Iron Oxides like Goethite/Hematite)
Sandstone (Pebble)
Sandstone (SiO2 dominated clastic sedimentary rock)
Sandstone
Sandstone (composed mainly of Quartz, SiO2, and Feldspar)
Limestone with fossiliferous textures
Bioclastic Limestone (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Sedimentary rock primarily composed of Calcite (CaCO3)
Sandstone (Quartzose)
Sandstone (composed primarily of Quartz: SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (composed primarily of SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily Quartz-based Sandstone)
Sandstone
Arenite (Siliclastic sedimentary rock)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz and/or feldspar)
Limestone with Calcite
Sedimentary Calcium Carbonate (CaCO3)
Fossiliferous Limestone
Biomicrite / Limestone with fossils
Sandstone
Clastic sedimentary rock (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Ferruginous Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
Sandstone (Quartz-rich)
Arenite (Quartz Arenite)
Fossiliferous Limestone
Limestone (Calcium Carbonate, CaCO3)
Sandstone
Arenite (primarily Quartz, SiO2)
Limestone (Fossiliferous)
Sedimentary Carbonate Rock (CaCO3)
Ferruginous Sandstone
Clastic Sedimentary Rock (Iron-rich)
Sandstone
Arenite
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Dolomite
Dolomite (CaMg(CO3)2)
Peridot and Citrine Gemstones (in a ring setting)
Peridot (Olivine: (Mg,Fe)2SiO4), Citrine (Quartz: SiO2)
Vesicular basalt (possible scoria)
Basaltic volcanic rock; chiefly plagioclase, pyroxene, and iron-rich minerals, with vesicles formed by trapped gas
Coal
Bituminous Coal (organic sedimentary rock)