Sandstone
Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)
Category
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)
Crinoid Marble (Fossilized Limestone)
Crinoidal Limestone (comprising Calcite/Aragonite CaCO3)
Ironstone Concretion (Iron-rich Mudstone)
Siderite / Geothite concretion (FeCO3 / FeO(OH))
Ferruginous Sandstone (Red Sandstone)
Arenite with Hematite/Limonite cement
Limestone
Calcium carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Geode (unopened)
Silica-filled Concretion (SiO2)
Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Sandstone
Clastic sedimentary rock (primarily SiO2)
Green Chert (Jasper)
Silicon Dioxide (SiO2)
White Chalcedony (Agate)
Silicon Dioxide (SiO2)
Ferruginous Sandstone (with Iron Oxide staining)
Clastic Sedimentary Rock - Quartz Arenite/Wacke
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
Sandstone (with Lichen)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (predominantly SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone (likely Quartzose type)
Clastic sedimentary rock (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium carbonate (CaCO3)
Sandstone (likely Red/Brown Sandstone)
Arenite (SiO2 based)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with FeO(OH) impurities)
Limestone
Calcium Carbonate (CaCO3)
Limestone (specifically Iron-stained or Argillaceous Limestone)
Calcium Carbonate (CaCO3) with Iron Oxide (Fe2O3) impurities
Sandstone (Quartzose)
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
Sandstone (Calcareous Sandstone)
Calcareous Sandstone (primarily SiO2 with CaCO3 cement)
Sandstone
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Sandstone (River Pebble)
Arenite
Sandstone
Arenite (primarily composed of SiO2 - Silicon Dioxide)
Sandstone Pebble
Arenite (primarily SiO2)
Sandstone
Arenite (often composed of Quartz, SiO2)
Carnelian (Red Agate/Chalcedony)
Cryptocrystalline Quartz (SiO2) with Hematite impurities
Sandstone
Arenite (primarily SiO2)
Limestone with Calcite Veining
Calcium Carbonate (CaCO3)