Sandstone
Arenite (primarily composed of SiO2)
Category
Browse sedimentary (anthropogenic) specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily composed of SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Fossiliferous Limestone
Fossiliferous Limestone (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Glauconite (Sandstone or Shale)
Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Sandstone
Arenite (SiO2 primarily)
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (likely Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (Quartzose)
Arenite (SiO2 based)
Sandstone
Arenite (composed primarily of SiO2)
Metaconglomerate
Metaconglomerate (Quartzite conglomerate)
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Sandstone
Arenite (primarily SiO2)
Crushed Limestone
Calcium Carbonate (CaCO3)
Dalmation Stone
Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)
Sandstone
Arenite
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone Pebble
Arenite (specifically Lithic or Quartz Arenite)
Sandstone (Micaceous)
Arenite (primarily SiO2 with Phyllosilicates)
Sandstone (with Iron Staining)
Arenite
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
Coarse Sandstone
Arenite (SiO2 based)
Sandstone
Clastic Sedimentary Rock (Quartz arenite or similar)
Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
Fossilized Shell in Limestone
Carbonate sedimentary rock with Bivalvia or Brachiopoda remains
Sandstone
Sandstone (Sedimentary rock composed of silicate grains)
Blue Agate Slice
Chalcedony (SiO2)
Calcite (likely honey/orange calcite)
Calcite — calcium carbonate, CaCO₃
Jasper, Agate, Quartz Mix (Polished Beads)
SiO₂ (Silicon Dioxide) for Quartz. Jasper and Agate are cryptocrystalline varieties of Quartz.
Sandstone
Arenite or Sandstone
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
Limestone (Weathered/Silicified)
Sedimentary carbonate rock (primarily CaCO3)
Red Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
Sandstone (with Calcite or Silica veins)
Clastic sedimentary rock (primarily SiO2)
Fossilized Rugose Coral in Limestone
Order Rugosa in Sedimentary Matrix (CaCO3)
Conglomerate
Clastic sedimentary rock (Polymictic Conglomerate)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)