Sandstone
Arenite
Category
Browse sedimentary (man made composite) specimens identified by the Rock Identifier community.
Sandstone
Arenite
Ferruginous Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
Limestone
Calcium Carbonate (CaCO3)
Fossiliferous Limestone
Limestone (Calcium Carbonate, CaCO3)
Limestone (specifically Marl or Chalk)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Fossiliferous Limestone
Biogenic Calcium Carbonate (CaCO3)
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 with iron oxide inclusions)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 oxides)
Sandstone
Arenite
Limestone
Calcium Carbonate (CaCO3)
Ferruginous Sandstone
Clastic Sedimentary Rock (Iron-rich)
Banded Sandstone (River Pebble)
Clastic Sedimentary Rock (SiO2 with impurities)
Sandstone Pebbles
Arenite
Sandstone (Ferruginous)
Arenite with Iron Oxide matrix
Sandstone
Arenite (mainly SiO2 with varying cements)
Fossiliferous Limestone
Limestone (CaCO3 - Calcium Carbonate)
Sandstone (Iron-stained)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone (Weathered Cobble)
Clastic sedimentary rock (primarily SiO2)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Sandstone
Arenite (primarily SiO2 with iron oxide cementation)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Sandstone (Weathered)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (with Quartz veining)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (River Cobble)
Clastic Sedimentary Rock (primarily Quartz with Feldspar)
Limestone
Calcium Carbonate (CaCO3)
Hematite
Iron Oxide (Fe2O3)
Chert Pebble
Microcrystalline Quartz (SiO2)
Limonite with Hematite
Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
Sandstone (likely Siltstone)
Arenite or Siltstone (high SiO2 content)
Brown Chalcedony
Silicon Dioxide (SiO2)
Sandstone
Arenite (Sandstone)
Sandstone
Arenite
Red Sandstone
Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
Moqui Marble (Shaman Stone)
Iron Oxide Concretion (Limonite/Hematite over Sandstone)
Shale
Shale (clay-rich mudstone)
Coal
Bituminous Coal (organic sedimentary rock)