Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
Category
Browse sedimentary (man made composite) specimens identified by the Rock Identifier community.
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Gold
Aurum (Au)
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Shale or Slaty Mudstone
Argillaceous sedimentary rock
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
Shale (Ferruginous)
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Shale
Shale (Consolidated fine-grained clay/silt)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
Shale
Shale (fine-grained clastic sedimentary rock)
Gold (Elemental Metal)
Gold (Au)
Sandstone (Quartz-rich)
Arenite (SiO2)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Sandstone
Arenite (primarily composed of SiO2)
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (Fe-oxide cemented)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)
Sandstone
Arenite (primarily SiO2)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Shale
Fissile mudstone (rich in clay minerals and quartz)
Pebble (likely Quartz or Chert)
SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.
Sandstone (Ferruginous)
Arenite (with Iron Oxide)
Sandstone (Ferruginous)
Arenite (Fe2O3 stained)
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Coarse Sandstone
Arenite (SiO2 based)
Mudstone
Lutylite (group of fine-grained sedimentary rocks)
Sandstone (likely Graywacke or Lithic Sandstone)
Clastic Sedimentary Rock
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
Shale
Lutaceous sedimentary rock
Sandstone (Ferruginous)
Arenite with Iron Oxide (Fe2O3) cement
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
Sandstone (Water-worn Pebble)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (Quartzose)
Arenite (Siliciclastic sedimentary rock)
Sandstone
Arenite (Clastic Sedimentary Rock)