Sandstone (Stream-rounded)
Arenite (SiO2 based)
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Sandstone (Stream-rounded)
Arenite (SiO2 based)
Gneiss
Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)
Sandstone
Arenite (primarily composed of SiO2)
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Hag Stone
Perforated Sedimentary Rock
Green Aventurine
Silicon dioxide (SiO2) with fuchsite inclusions
Amethyst (Geode/Druzy)
Silicon Dioxide (SiO2) with iron impurities
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Jasper
Silicon dioxide (SiO2)
Sandstone (Quartz Arenite)
Sandstone (Chemical formula: primarily SiO2)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Sandstone
Arenite (SiO2 based with mineral cement)
Sandstone
Arenite (composed primarily of SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 impurities)
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Jasper
Cryptocrystalline Quartz (SiO2)
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Veined Limestone (Micrite) with Quartz/Calcite Veins
Calcium Carbonate (CaCO3) with Silicate or Carbonate inclusions
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Quartzose Sandstone with mineral staining)
Arenite (composed mainly of SiO2)
Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Quartz Druzy Geode Fragment
Silicon Dioxide (SiO2)
Bauxite
Al2O3·2H2O (principally composed of gibbsite, boehmite, and diaspore)
Sandstone (likely Quartzose Sandstone)
Arenite
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Sandstone (Pebble/Cobble)
Arenite (primarily SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Sandstone (Quartz-rich)
Arenite (SiO2 based)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Sandstone
Arenite (Sedimentary rock comprising sand-sized grains)
Amber-bearing Coal/Sedimentary Rock
Bituminous coal or carbonaceous siltstone with Fossilized Tree Resin (C10H16O)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)