Sandstone (likely Arkosic)
Clastic Sedimentary Rock
Category
Browse sedimentary (biogenic) specimens identified by the Rock Identifier community.
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)
Limestone Breccia
Sedimentary Breccia (Calcareous)
Siltstone or Mudstone
Argillaceous sedimentary rock
Shale
Lutaceous sedimentary rock
Septarian Nodule (Dragon Stone)
Septarian Concretion (Calcite, Aragonite, and Limestone/Clay)
Banded Iron Formation (BIF) / Jaspilite
Banded Iron Formation (predominantly Hematite, Magnetite, and Quartz/Jasper)
Gastropod Fossil (Internal Mold)
Phylum Mollusca, Class Gastropoda (Steinkern)
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
Shiva Lingam
Cryptocrystalline Quartz (Jasperiod Siltstone)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Sandstone or Quartzite
Arenite (if sedimentary) / Quartzite (if metamorphic)
Sandstone (likely Arkose or Lithic)
Clastic sedimentary rock (primarily SiO2)
Red Jasper
Chalcedony (SiO2) with iron inclusions
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Quartz Geode
Silicon Dioxide (SiO2) within a geode
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Conglomerate
Conglomerate (Sedimentary rock)
Conglomerate
Conglomerate (Sedimentary Rock)
Banded River Stone (Greywacke or Siltstone subtype)
Sedimentary Banded Siltstone
Conglomerate
Conglomerate (Sedimentary Rock)
Stream-Rounded Shale or Mudstone
Argillaceous sedimentary rock
Conglomerate
Clastic Sedimentary Rock
River Cobble (likely Siltstone or Sandstone)
Clastic Sedimentary Rock
Conglomerate
Conglomerative Sedimentary Rock
Conglomerate
Clastic Sedimentary Conglomerate
Limestone
Sedimentary Calcite (CaCO3)
Conglomerate
Conglomerate (Sedimentary rock)