Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 with iron oxide inclusions)
Category
Browse sedimentary (man made) specimens identified by the Rock Identifier community.
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 with iron oxide inclusions)
Granite Cobble/Pebble
Granite
Sandstone (Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartz-rich)
Arenite (SiO2 based clastic rock)
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3/FeO(OH) cementing agents)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (with Goethite/Limonite cement)
Sandstone
Arenite (composed primarily of Quartz: SiO2)
Red Mudstone (Siltstone)
Lutite (primarily Quartz and Clay minerals with Hematite)
Sandstone
Arenite (primarily SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Sandstone (likely Quartzose Sandstone pebble)
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Granite
Granite (a plutonic rock)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (variable SiO2 with Fe2O3 staining)
Limestone
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Sandstone (Weathered)
Arenite (primarily SiO2)
Limestone (specifically fossiliferous/skeletal limestone)
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (with Manganese staining)
Arenite (composed primarily of SiO2)
Sandstone (Quartzose)
Arenite (SiO2 principal)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 oxides)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with iron oxide Fe2O3 cement)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Quartzite-rich Pebble)
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Sandstone (Clastic sedimentary rock, predominantly SiO2 with Fe2O3 cement)
Sandstone
Sandstone (lithified quartz arenite, arkose, graywacke, etc. depending on composition)
Limestone
Calcareous sedimentary rock (CaCO3)
Red Jasper
Silicon Dioxide (SiO2)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Agate (Nodule/Chert)
Silicon Dioxide (SiO2)
BROWN GRANITE (likely 'Tan Brown' or similar)
Granite (specifically a variety rich in orthoclase feldspar, often with biotite and possibly hornblende)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)