Sandstone
Arenite (lithic or quartz sandstone)
sedimentary
Category
Sedimentary (Artificial)
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
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Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Coal
Bituminous coal (Complex organic sedimentary rock)
sedimentary
Fossilized Trilobite or Mollusk Fragment
Phylum Arthropoda / Mollusca fossil in sedimentary matrix
fossil
Argillite
Argillite (compact, clay-rich sedimentary rock)
sedimentary
Coal
Carbonaceous sedimentary rock / Lignite to Bituminous coal
sedimentary
Chert (and Limestone Pebbles)
Silicon Dioxide (SiO2) / Sedimentary Microcrystalline Quartz
sedimentary
Sandstone
Sandstone (clastic sedimentary rock), primarily SiO2
sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (Calcite, CaCO3)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Pyrite Concretion
Iron Sulfide (FeS2) in Sedimentary Matrix
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Ferruginous Sandstone
Clastic Sedimentary Rock (Iron-rich)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (River Rock)
Arenite (SiO2 based sedimentary rock)
sedimentary
Sandstone
Sandstone (clastic sedimentary rock composite)
sedimentary
Sandstone (with Chert/Quartzite nodules)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (lithic/quartz variant)
Clastic sedimentary rock (SiO2 predominant)
sedimentary
Limestone
Calcareous sedimentary rock (primarily CaCO3)
sedimentary
Limestone (River Stone)
Calcite-rich Sedimentary Rock (CaCO3)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone (likely Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Jasper Agate
Silicon Dioxide (SiO2) - Chalcedony variety
sedimentary
Chert (with small quartz vug)
Chert (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Ferruginous Concretion)
Arenite (with iron oxide cement)
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (High Silica / Iron Oxide)
sedimentary
Marble
Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)
metamorphic
Weathered sandstone or limestone fragment
Likely quartz-rich sandstone or calcitic limestone; exact identification is uncertain from the image
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Jasper / Agate (Chalcedony)
Silicon dioxide (SiO2)
sedimentary
Sandstone
Sandstone (Arenite)
sedimentary
Sandstone
Quartz arenite / Lithic sandstone
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary