Sandstone
Arenite (SiO2 based)
Category
Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 based)
Sandstone (Stream-rounded)
Arenite (SiO2 based)
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
Sandstone with Tafoni Weathering
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone (Quartzose)
Arenite (SiO2 based)
Sandstone (River Pebble)
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone (with potential iron-oxide weathering)
Arenite (SiO2 based)
Sandstone (Quartzose)
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone (likely Graywacke or Arkose)
Arenite
Sandstone / Weathered Chert
Silicon Dioxide (SiO2) / Quartz-rich Clastic Rock
Chert
Chert (Microcrystalline Quartz, SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Sandstone
Arenite (clastic sedimentary rock)
Conglomerate
Conglomerate rock (detrital sedimentary)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
Limestone
Calcite-rich carbonate rock (primarily CaCO₃)
Quartz Pebble
Silicon Dioxide (SiO2)
Limestone with Iron Inclusions
Calcium Carbonate (CaCO3) with Hematite/Limonite
Shale
Argillite / Shale
Druzy Quartz on Ironstone
Silicon Dioxide (SiO2) on Limonitic Ironstone
Conglomeratic Sandstone
Clastic Sedimentary Rock
Chert
Chert (Microcrystalline Silica, SiO2)
Smoky Quartz
SiO2 (Silicon Dioxide)
Shale
Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)
Heliotrope (Bloodstone)
Silicon Dioxide with Iron Oxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Limestone (specifically Grainstone or Micrite)
Calcium Carbonate (CaCO3)
Crushed Limestone
Calcium Carbonate (CaCO3)
Limestone
Sedimentary Calcite (CaCO3)
Limestone Riprap
Sedimentary Calcium Carbonate (CaCO3)
Fossiliferous Limestone
Sedimentary Calcium Carbonate (CaCO3)
Chert (Flint)
Microcrystalline Quartz (SiO2)