Chert (and associated Sedimentary rocks)
Microcrystalline Silica (SiO2)
Category
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
Chert (and associated Sedimentary rocks)
Microcrystalline Silica (SiO2)
Sandstone (Quartzose)
Arenite (Siliciclastic sedimentary rock)
Conglomerate
Conglomerate (a clastic sedimentary rock)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
Sandstone (lithic wacke/arenite)
Clastic sedimentary rock (primarily SiO2)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 based)
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite (Siliclastic Sedimentary Rock)
Sandstone
Sandstone (lithified arenite/wacke)
Jasper
Silicon dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or iron oxide inclusions
Sandstone (Weathered Cobble)
Clastic Sedimentary Rock (primarily SiO2)
Conglomerate
Conglomerate (a clastic sedimentary rock)
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Limonite/Goethite staining)
Amethyst Geode
Amethyst (Silicon Dioxide), Formula: SiO2
River Rocks (Basalt and Sedimentary Stones)
Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock
Limestone (specifically a Crushed Aggregate fragment)
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (Quartz-rich)
Arenite (primarily SiO2)
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
Dalmation Stone
Peralkaline Rock (mixed silicate minerals)
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite
Sandstone
Clastic sedimentary rock (primarily SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Fossil Bivalve Shell
Class Bivalvia (e.g., Veneriidae family)
Sandstone (Ferruginous)
Arenite (with Iron Oxide)
Sandstone (Quartzose type)
Arenite (primarily SiO2)
Sandstone
Arenite (composed mainly of SiO2)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Sandstone (likely Quartzose Sandstone with mineral staining)
Arenite (composed mainly of SiO2)
Reddish Brown Claystone or Siltstone
Argillite / Siltstone / Claystone
Sandstone (Micaceous)
Arenite (primarily SiO2 with Phyllosilicates)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Sandstone (Red)
Arenite (Fe2O3 heavy)
Sandstone
Arenite (SiO2 based)