Sandstone
Clastic Sedimentary Rock
Category
Browse sedimentary (fossiliferous) specimens identified by the Rock Identifier community.
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Red Claystone / Mudstone
Argillaceous sedimentary rock
Conglomerate
Conglomerate Sedimentary Rock
River Stone (Sandstone or Siltstone)
Sedimentary Rock (Clastic)
Chert (Jasper/Flint variety)
Sedimentary silica (SiO2)
Shale
Argillaceous Sedimentary Rock
Hag Stone
Perforated Sedimentary Rock
Sandstone (likely Arkosic)
Clastic Sedimentary Rock
Sandstone Cobble
Clastic Sedimentary (Sandstone)
Breciated Limestone with Calcite Veins
Sedimentary Breccia (CaCO3)
Limestone
Sedimentary Calcite (CaCO3)
Shale or Mudstone River Pebble
Argillaceous sedimentary rock
Sandstone (likely Siltstone or fine-grained Sandstone)
Sedimentary Rock (Clastic)
Wood Stone (Dragon Stone variant)
Argillaceous Sedimentary Rock
River Pebble (Greywacke or Siltstone)
Clastic Sedimentary Rock
Shale or Siltstone
Sedimentary Rock (Siliciclastic)
Coal (Bituminous)
Sedimentary carbonaceous rock
Conglomerate
Clastic Sedimentary (Conglomerate)
Siltstone or Mudstone
Argillaceous sedimentary rock
Shale
Lutaceous sedimentary rock
Sandstone
Sedimentary Clastic Rock (Quartz-rich)
Tumbled sandstone pebble
Quartz-rich sandstone, commonly subarkose or arkose
Banded Ironstone / Jasper Siltstone
Siltstone with Iron Oxide Hydrates (SiO2 with Fe2O3/FeO(OH))
Quartz-veined Siltstone
Siltstone with Quartz (SiO2) veins
Hematite
Hematite (Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Jasper (Mookaite / Brecciated Jasper)
Microcrystalline Quartz (SiO2 with iron oxide inclusions)
Quartz pebble
Silicon dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Red Jasper
Microcrystalline Quartz (SiO2 with Iron Oxide impurities)
Blue Calcite
Calcium Carbonate (CaCO3)
Botryoidal Pyrite
Iron Sulfide (FeS2)
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
Limestone
Calcareous sedimentary rock (CaCO3)
Sandstone (Tumbled / Rounded)
Sedimentary Rock (Quartz arenite)
Orange Calcite
Calcium Carbonate (CaCO3)
Red Jasper (with Chert/Quartz)
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Jasper (likely Iron-stained)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon Dioxide (SiO2)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities