Red Sandstone Pebble
Quartzose Sandstone
Category
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Red Sandstone Pebble
Quartzose Sandstone
Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Pyrite in Quartz Matrix
Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
Sandstone (with minor weathering/pitting)
Clastic Sedimentary Rock (composed mostly of SiO2)
Fossil shell fragment in sedimentary rock
Indeterminate marine mollusk shell; likely a bivalve or gastropod fossil
Mixed sedimentary rock and mineral specimens
Predominantly limestone, chert, sandstone, and iron-oxide-bearing clasts; exact identification requires testing
Banded river pebble
Likely banded sandstone or siltstone; exact identification requires testing
Quartz Vein in Sedimentary Rock
Silicon Dioxide (SiO2) with host Chert or Limestone
Sandstone
Arenite
Gneiss
Gneiss (Metamorphic Rock)
Sandstone
Arenite (SiO2 composition primarily)
Calcite (Honey Calcite and Agate)
Calcium Carbonate (CaCO3)
Quartz-veined Limestone
Sedimentary limestone with quartz/calcite veinlets
Sandstone
Arenite (predominantly SiO2 quartz grains)
Seashell Fossil
Gastropoda fossil
Sandstone
Arenite (SiO2 predominantly)
Sandstone
Arenite
Sandstone
Arenite (composed primarily of SiO2)
Banded gneiss
Gneiss, commonly quartz–feldspar–mica gneiss
Satin Spar (Gypsum)
Gypsum (Satin Spar variety) - CaSO4·2H2O
Sandstone with Quartz/Calcite druse
Arenite with druse (SiO2 or CaCO3)
Fossilized Bone
Permineralized Vertebrate Bone
Shale with Iron Staining
Fissile Argillaceous Sedimentary Rock
Shale
Shale (Lutite)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Sandstone (with potential fossil fragments)
Sandstone (SiO2 dominated with iron oxides)
Sandstone with Dendritic Inclusions
Quartzose Sandstone
Sandstone (with carbonaceous plant fragments)
Arenite (composed primarily of SiO2)
Sandstone or Weathered Conglomerate
Sedimentary Rock (Quartzose Sandstone / Lithic Arenite)
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
Sandstone (Water-worn pebble)
Sedimentary Rock (Quartz arenite)
Sandstone
Sedimentary Rock (Quartz arenite)
Sandstone
Sedimentary Rock (Quartz Arenite)
Sandstone
Sedimentary Rock (Quartz Arenite)
Sandstone
Sandstone (clastic sedimentary rock)
Sandstone
Arenite (Clastic Sedimentary Rock)
Sandstone
Arenite (Siliclastic sedimentary rock)
Sandstone (Pebble)
Arenite / Clastic Sedimentary Rock
Sandstone
Arenite (primarily SiO2)
Limonite Concretion
FeO(OH)·nH2O (Hydrated Iron Oxide)
Sandstone
Sedimentary Rock (Quartz Arenite)