Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 major component)
Category
Browse sedimentary rock specimens identified by the Rock Identifier community.
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 major component)
Chert (Nodular)
Chert (SiO2 - Microcrystalline Quartz)
Fossil Sand Dollar (Echinoidea)
Phylum Echinodermata, Class Echinoidea (likely Dendraster or Scutella)
Sandstone (Beach Pebble)
Clastic sedimentary rock (primarily Quartz and Feldspar)
Shale creek bed
Shale (fine-grained clastic sedimentary rock)
Sandstone (Gneissic or Banded)
Clastic Sedimentary Rock (composed predominantly of SiO2)
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
Chalk / Sedimentary Limestone
Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Siltstone
Siltstone (fine-grained clastic sedimentary rock)
Hag Stone
Perforated Sedimentary Rock (primarily Siltstone or Mudstone)
Limestone
Sedimentary rock composed of Calcium Carbonate (CaCO3)
Fossilized Shell in Limestone
Bivalve fossil (CaCO3) in Carbonate Sedimentary Rock
Travertine (Ceramic Tile)
Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)
Anthracite Coal
Anthracite (Carbon-rich metamorphic sedimentary rock)
Siltstone
Siltstone (fined-grained clastic sedimentary rock)
Stromatolite
Biogenic Sedimentary Rock (composed predominantly of CaCO3)
Coquina / Fossiliferous Limestone
Calcite-rich Bioclastic Sedimentary Rock (CaCO3)
Sandstone (Red Flagstone)
Clastic sedimentary rock (primarily Quartz - SiO2)
Ironstone (Limonite/Hematite)
Ferruginous sedimentary rock (Fe2O3·nH2O / Fe2O3)
Banded Iron Formation (BIF) / Ironstone Conglomerate
Ironstone (Hematite/Goethite rich sedimentary rock)
Sandstone
Sandstone (clastic sedimentary rock), primarily SiO2
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz - SiO2)
Chalk (Calcitic)
Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock
Shale
Fissile Mudrock (Clay-rich Sedimentary Rock)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Microcrystalline Limestone Pebble
Carbonate sedimentary rock (Calcium Carbonate, CaCO3)
Sandstone
Arenite (Siliclastic sedimentary rock, primarily SiO2)
Yellow Ocherous Siltstone (Limonitic Shale)
Limonitic Siltstone / Goethite-rich Sedimentary Rock
Ironstone (Limonitic Shale)
Ferruginous Siltstone / Goethite-rich Sedimentary Rock
Bituminous Coal (with Anthracite or Vitrinite inclusion)
Organic-rich Sedimentary Rock (Carboniferous classification)
Hag Stone (Piddock bored rock)
Calcareous sedimentary rock featuring Pholadidae borings
Sandstone
Clastic sedimentary rock (primarily Quartz and Feldspar)
Sandstone (Iron-stained)
Clastic sedimentary rock (SiO2 with Fe2O3 staining)
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Flagstone (Sandstone)
Clastic Sedimentary Rock (composed of quartz and feldspar)
River Stone (likely Siltstone or fine-grained Sandstone)
Clastic Sedimentary Rock (Lithic Wacke / Siltstone)
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
Red Sandstone (Hematitic)
Clastic sedimentary rock (SiO2 with Fe2O3 inclusions)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)