Rock Identifier

Category

Sedimentary (Base), Then Artificial

Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.

Precious Opal (Hydrated Silica (SiO2·nH2O)) — mineral

Precious Opal

Hydrated Silica (SiO2·nH2O)

Dalmatian Stone (Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)) — igneous

Dalmatian Stone

Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Granular Sandstone (Arenite (variable composition, primarily SiO2)) — sedimentary

Granular Sandstone

Arenite (variable composition, primarily SiO2)

Sandstone (likely Arkosic) (Clastic Sedimentary Rock (Sandstone)) — sedimentary

Sandstone (likely Arkosic)

Clastic Sedimentary Rock (Sandstone)

Druzy Quartz (on Chalcedony/Agate base) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (on Chalcedony/Agate base)

Silicon Dioxide (SiO2)

Sandstone (Arenite (specifically Iron-stained Quartz Sandstone)) — sedimentary

Sandstone

Arenite (specifically Iron-stained Quartz Sandstone)

Asphalt / Road Aggregate (Bituminous Conglomerate (synthetic)) — sedimentary

Asphalt / Road Aggregate

Bituminous Conglomerate (synthetic)

Jasper River Stone (Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)) — sedimentary

Jasper River Stone

Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)

Gneiss (Pebble) (Gneiss) — metamorphic

Gneiss (Pebble)

Gneiss

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Tree Agate (Silicon Dioxide (SiO2) with Chlorite inclusions) — sedimentary

Tree Agate

Silicon Dioxide (SiO2) with Chlorite inclusions

Chert (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Quartz, SiO2)

Quartzite in Conglomerate (Clastic Sedimentary Rock with Silicon Dioxide (SiO2) inclusions) — sedimentary

Quartzite in Conglomerate

Clastic Sedimentary Rock with Silicon Dioxide (SiO2) inclusions

Muscovite Schist with Quartz (KAl2(AlSi3O10)(OH)2 in Schistose matrix) — metamorphic

Muscovite Schist with Quartz

KAl2(AlSi3O10)(OH)2 in Schistose matrix

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Crushed Stone (Likely Limestone or Granite) (Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite) — sedimentary or igneous

Crushed Stone (Likely Limestone or Granite)

Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite

sedimentary or igneous

Red Sandstone (Arenite (primarily SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Arenite (primarily SiO2 with Fe2O3)

Jasper Agate (Carnelian Jasper) (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Jasper Agate (Carnelian Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Limestone (Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Limestone

Limestone (Calcium Carbonate - CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Chert (with Fossiliferous Silicification) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (with Fossiliferous Silicification)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Aura Quartz Geodes (Lab-Altered) (Silicon Dioxide (SiO2) with Metallic Vapor Deposition) — mineral

Aura Quartz Geodes (Lab-Altered)

Silicon Dioxide (SiO2) with Metallic Vapor Deposition

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Conglomerate (or Breccia) (Clastic Sedimentary Rock (Conglomeratic)) — sedimentary

Conglomerate (or Breccia)

Clastic Sedimentary Rock (Conglomeratic)

Conglomerate (Conglomerate (a clastic sedimentary rock)) — Sedimentary Rock

Conglomerate

Conglomerate (a clastic sedimentary rock)

Sedimentary Rock

Crushed Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Crushed Limestone

Sedimentary Calcium Carbonate (CaCO3)

Sandstone (Greywacke) (Arenite / Lithic Wacke (SiO2 predominant)) — sedimentary

Sandstone (Greywacke)

Arenite / Lithic Wacke (SiO2 predominant)

Limestone Pebble (Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Limestone Pebble

Limestone (Calcium Carbonate, CaCO3)

Chert (with Calcite Veining) (Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) veins) — sedimentary

Chert (with Calcite Veining)

Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) veins

Fossiliferous Limestone (Calcium Carbonate (CaCO3) with Bioclastic Inclusions) — sedimentary

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Bioclastic Inclusions

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Sandstone (with manganese staining) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with manganese staining)

Clastic sedimentary rock (primarily SiO2)

Fossiliferous Limestone (Calcite (CaCO3) with Bioclastic inclusions) — sedimentary

Fossiliferous Limestone

Calcite (CaCO3) with Bioclastic inclusions