Smoky Quartz
Smoky Quartz (SiO2)
Category
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
Smoky Quartz
Smoky Quartz (SiO2)
Blue Lace Agate
Chalcedony (a form of Quartz) - SiO2
Smoky Quartz
Quartz (SiO₂)
Ocean Jasper
Orbicular Jasper (variety of Chalcedony - SiO2)
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Sandstone or Siltstone
Arenite (if sandstone)
Shale or Slaty Mudstone
Argillaceous sedimentary rock
Sandstone
Arenite (primarily SiO2)
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
Sandstone (Quartz-rich)
Arenite (SiO2)
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
Mudstone
Lutylite (group of fine-grained sedimentary rocks)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone
Arenite
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
Shale
Lutaceous sedimentary rock
Shale
Shale (Consolidated fine-grained clay/silt)
Shale (sub-type: Carbonaceous Shale)
Lutaceous Sedimentary Rock
Shale
Fissile mudstone (Shale)
Silty Shale
Silty Shale (Fissile Sedimentary Rock)
Shale
Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)
Shale (Ferruginous)
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Shale (with Iron Oxide staining)
Fissile Mudstone (primarily Quartz and Clay minerals)
Brachiopod Fossil in Limestone
Phylum Brachiopoda (likely Order Spiriferida), CaCO3 (Calcite)
Sedimentary Breccia
Breccia (Clastic Sedimentary Rock)
Pyrite in Shale
Iron Disulfide (FeS2)
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
Sandstone (with carbonaceous plant fragments)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily composed of SiO2)
Shale
Fissile Siliciclastic Sedimentary Rock
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Chert
Silicon dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide cement)
Sandstone (Ferruginous)
Arenite (Fe-oxide cemented)
Shale
Fissile Mudstone
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)
Gastropod Steinkern (Internal Mold Fossil)
Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix