Oolitic Limestone
Oolite (Sedimentary rock composed of CaCO3)
Category
Browse sedimentary specimens identified by the Rock Identifier community.
Oolitic Limestone
Oolite (Sedimentary rock composed of CaCO3)
Sandstone Geode (Unbroken)
Siliciclastic sedimentary rock (primarily Quartz)
Sandstone (Quartzite texture)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Glacial Cobble)
Arenite / Sedimentary Rock (primarily SiO2)
Fossiliferous Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Limestone
Sedimentary Rock (Calcium Carbonate, CaCO3)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone Concretion (Omar or Nut Rock)
Sedimentary Concretion (specifically an 'Omarolluk' or Omar)
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
Red Sandstone (Arkose)
Clastic Sedimentary Rock (Lithic Arkose)
Sandstone (Water-worn Pebble)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Graywacke)
Clastic Sedimentary Rock (Lithic Sandstone)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Wonderstone)
Clastic Sedimentary Rock (primarily SiO2)
Ferruginous Sandstone (Grit)
Clastic Sedimentary (Ironstone-rich Sandstone)
Dragon Stone
Argillaceous Sedimentary Rock (Ohko Stone)
Stromatolite
Laminated biogenic sedimentary structure (Cyanobacteria)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (Quartz-rich sedimentary rock)
Sandstone with Quartz Veining
Clastic sedimentary rock (SiO2 dominated)
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3)
Sandstone (Banded)
Clastic sedimentary rock (primarily SiO2)
Coquina / Fossiliferous Limestone
Calcareous bioclastic sedimentary rock (CaCO3)
Bituminous Coal
Organic sedimentary rock (humic coal)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Anthracite Coal
Anthracite (Carbon-rich Sedimentary Rock)
Banded Sandstone (Differential Weathering)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone Concretion
Sedimentary Concretion (SiO2 or CaCO3 cemented)
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
Shale or Mudstone (Based on appearance)
Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Bituminous Coal
Bituminous coal (Carbonaceous sedimentary rock)
Zebra Jasper
Silicon Dioxide (SiO2) - Macro-crystalline Quartz/Chert with impurities
Chert (or Cryptocrystalline Quartz)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 dominant)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 primarily)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Quartz Sandstone)
Arenite (SiO2 based)