Shale
Shale (Lutite)
Category
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Shale
Shale (Lutite)
Sandstone
Arenite
Sandstone (likely Graywacke or Lithic Sandstone)
Clastic Sedimentary Rock
Shale
Lutaceous Sedimentary Rock
Shale (possibly Carbonaceous or Oil Shale)
Argillaceous Sedimentary Rock
Red Sandstone
Sandstone (principally Quartz with Iron Oxide coating)
Sandstone
Arenite (SiO2 primarily)
Fossilized Bone
Permineralized Vertebrate Bone
Quartz-veined Sandstone Pebble
Quartzite-veined Arenite
Sandstone (Micaceous)
Clastic Sedimentary Rock - Micaceous Litharenite (SiO2 principal)
Sandstone (with minor weathering/pitting)
Clastic Sedimentary Rock (composed mostly of SiO2)
Red Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
Sandstone (Weathered / Crushed)
Quartz Sandstone
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
Sandstone (with potential fossil fragments)
Sandstone (SiO2 dominated with iron oxides)
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
Satin Spar (Gypsum)
Gypsum (Satin Spar variety) - CaSO4·2H2O
Banded sandstone pebble
Quartz-rich lithic sandstone; exact provenance and composition require testing
Travertine
Travertine (CaCO3)
Sandstone
Arenite (SiO2 predominantly)
Sandstone (Weathered Pebble)
Sedimentary Rock (Quartz arenite)
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 composition primarily)
Likely weathered gneiss
Foliated metamorphic rock, commonly quartz–feldspar–mica gneiss
Calcite (Honey Calcite and Agate)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Calcite
Calcium Carbonate (CaCO3)
Quartz-veined Sedimentary Rock
Sedimentary rock with hydrothermal quartz veins
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
Fossil Shell
Phylum Mollusca (Bivalvia or Brachiopoda)
Gneiss (Metamorphic Pebble)
Gneissic Metamorphic Rock
Fossilized Gastropod Shell
Gastropoda (Class) replacement / internal cast (steinkern)
Sandstone
Arenite
Sandstone
Arenite (SiO2 principal composition)
Quartz Geode
Silicon Dioxide (SiO2) in Host Rock
Sandstone (River Cobble)
Sandstone (principally composed of Quartz, SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (SiO2 principal)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Sandstone
Clastic Sedimentary Rock
Sandstone (with carbonaceous plant fragments)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2)