Sandstone
Sedimentary Rock (Quartz arenite)
Category
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
Sandstone
Sedimentary Rock (Quartz arenite)
Sandstone Pebble
Sedimentary Clastic Rock (Quartz Arenite)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Hag Stone
Perforated Sedimentary Rock (typically Limestone or Sandstone)
Banded Sandstone (Liesegang Rings)
Arenite with Liesegang rings (SiO2/Fe2O3)
Quartz-rich rock, likely chert or chalcedony
Microcrystalline silica (SiO₂), possibly quartz/chalcedony
Sandstone
Sandstone (SiO2-dominated clastic rock)
Limestone
Calcite rock (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based)
Sedimentary Sandstone with Iron Oxide
Ferruginous Sandstone
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Banded Ironstone / Jasper Siltstone
Siltstone with Iron Oxide Hydrates (SiO2 with Fe2O3/FeO(OH))
Jasper Conglomerate
Polymictic Conglomerate (Quartz and Jasper clasts in a quartz-rich matrix)
Red Sandstone
Arenite (primarily SiO2 with Fe2O3)
Sandstone with Desert Varnish
Arenite with Ferromanganese patina
Sandstone
Arenite (SiO2 principal)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Pebble / Rounded Rock
Lithic fragment / Water-worn rock
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone/Quartzite
Sedimentary Rock (composed mainly of SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite
Shale
Shale (Lutite)
Conglomerate
Conglomerate
Quartz Geode
Silicon Dioxide (SiO2)
Bauxite / Iron-rich Laterite
Laterite (principally Al(OH)3, Fe2O3, and SiO2)
Sandstone (Ferruginous)
Arenite with Iron oxide staining (SiO2 with Fe2O3)
Siltstone Pebble
Siltstone (composed of siliciclastic grains)
Granite boulder
Granite, composed mainly of quartz, alkali feldspar, plagioclase, and minor mica/amphibole
Sandstone Pebbles
Arenite (primarily SiO2 with mineral cement)
Sandstone
Arenite (SiO2 primarily)
Quartz-veined Greywacke
Silicon dioxide (SiO2) in Lithic Sandstone
Yellow Chert
Microcrystalline Quartz (SiO2)
Conglomerate
Clastic sedimentary rock (Conglomerate)
Quartz-veined Limestone
Sedimentary limestone with quartz/calcite veinlets
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
Sandstone
Sandstone (principally SiO2/Silicon Dioxide)
Sandstone
Arenite (SiO2 based with various cements)