Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Category
Sedimentary Rock (Metamorphosed)
Browse sedimentary rock (metamorphosed) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Metamorphosed) in the encyclopedia
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Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
sedimentary
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Agate
Silicon dioxide (Chalcedony), SiO2
gemstone
Sandstone with Manganese Staining
Quartz Arenite / Sedimentary Rock
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
mineral
Seashell Fossil
Invertebrate Bivalve / Gastropod Fossil (Calcium Carbonate, CaCO3)
fossil
Sandstone (Banded Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with iron oxide impurities)
sedimentary
Fossiliferous Sandstone (with Brachiopod or Bivalve mold)
Clastic Sedimentary Rock with Macrofossil Mold
sedimentary
Pebble
Lithified rock fragment / Sedimentary clast
sedimentary
Polished river pebble
Indeterminate; likely fine-grained quartz-rich sedimentary rock or weathered volcanic rock
sedimentary
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Ferruginous Sandstone (River Pebble)
Clastic Sedimentary Rock (Iron-rich)
sedimentary
Sandstone
Sandstone (principally SiO2/Silicon Dioxide)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Clastic Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
River Pebble (Gravel)
Clastic sedimentary rock (likely Siltstone or Mudstone pebble; SiO2 with various impurities)
sedimentary
Chert (or potentially Jasper/Chalcedony)
SiO2 (Silicon Dioxide)
sedimentary
Sandstone (Lithic Wacke)
Clastic sedimentary rock (primarily SiO2 with rock fragments)
sedimentary
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone Pebble
Sedimentary Rock (Quartz Arenite)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Quartz-veined Sandstone Pebble
Quartzose Sandstone with Quartz Veinlets
sedimentary
Sandstone
Sandstone (composed predominantly of Quartz, SiO2)
sedimentary
Sea Shell (Mollusk Shell)
Calcium Carbonate (Aragonite/Calcite)
fossil
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Purple Chalcedony
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Fossil Bivalve Shell
Class Bivalvia (e.g., Veneriidae family)
sedimentary
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Sandstone (Water-worn Pebble)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Weathered Sedimentary Rock with Liesegang Rings
Sandstone or Siltstone with Iron Oxide Banding
sedimentary
Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Sandstone
Arenite
sedimentary
Hag Stone (Adder Stone / Geode-bearing Pebble)
Sedimentary Rock with Cavity (often Quartzite, Limestone, or Sandstone)
sedimentary
River Pebble (Siltstone / Fine-grained Sandstone)
Sedimentary Pebble (Siliclastic)
sedimentary