Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Category
Sedimentary (Base), Then Artificial
Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.
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Limestone Cobble
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Polygenetic Conglomerate (Puddingstone)
Conglomerate (SiO2 matrix with mixed clasts)
sedimentary
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
sedimentary
Limestone Gravel
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Pebble)
Arenite
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
sedimentary
Bloodstone
Chalcedony variety Heliotrope (SiO2 with inclusions)
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Conglomerate
Sedimentary Conglomerate
sedimentary
Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Fossil Shark Tooth
Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite
fossil
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Limestone Breccia
Sedimentary Breccia (Calcareous)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Granite
Granite (Phaneritic Igneous Rock)
igneous
Chert (or Flint)
Chert (SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Hag Stone
Perforated Sedimentary Rock
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
White Onyx (Marble Onyx)
Calcite (CaCO3) - Banded Calcium Carbonate
sedimentary
Asphalt (Aggregate)
Bituminous macadam / Concrete Aggregate
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Sandstone (lithic wake/graywacke variety)
Arenite/Greywacke (SiO2 with lithic fragments)
sedimentary
Gravel/Common Siltstone
Siltstone (fine-grained siliciclastic sedimentary rock)
sedimentary
Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Conglomerate
Clastic Sedimentary Rock
sedimentary
Limestone or Sandstone Cobble
Sedimentary rock (Calcium carbonate or Quartz based)
sedimentary
Fossilized Sea Urchin Spines
Echinoidea (Cidaroid spines)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (likely Conglomerate or Gritstone)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary