Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Category
Browse sedimentary (man made composite) specimens identified by the Rock Identifier community.
Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Fossil Coral
Coral Limestone (a type of biogenic sedimentary rock)
Ferruginous Sandstone
Sandstone, Iron-rich
Sandstone (with banding)
Arenite (primarily SiO2)
Limestone (specifically Chalky Limestone)
Calcium Carbonate (CaCO3 / Calcite)
Dolomite or Limestone (Carbonate Rock)
CaMg(CO3)2 (Dolomite) or CaCO3 (Limestone / Calcite)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Limestone (specifically Crushed Limestone/Calcictic)
Calcium Carbonate (CaCO3)
Sandstone (specifically Red Sandstone)
Arenite (primarily Quartz, SiO2)
Sandstone (Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone (specifically Fossiliferous Limestone)
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone (Fossiliferous)
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone with Iron Oxide (Limonite/Hematite)
Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone
Arenite (SiO2 based with quartz, feldspar, or lithic fragments)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (likely Quartzose Sandstone pebble)
Arenite (primarily SiO2)
Sandstone (Quartzose Sandstone Pebble)
Arenite (primarily SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Ferruginous)
Sandstone (mainly SiO2 with Fe2O3 staining)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (variable SiO2 with Fe2O3 staining)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (likely River-tumbled Picture Sandstone)
Arenite (predominantly SiO2 with iron oxide impurities)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (primarily composed of SiO2)
Sandstone (Quartz-rich)
Arenite (SiO2 based clastic rock)
Limestone (Flagstone)
Fossiliferous Limestone (CaCO3)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 inclusions)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz and/or feldspar)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
River Rocks (Basalt and Sedimentary Stones)
Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock
Red Sandstone
Arenite (primarily Quartz with Hematite cement)