Rock Identifier

Category

Man Made Rock (Sedimentary Analogue)

Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.

Siltstone with Iron Staining (Siltstone (primarily SiO2 with Fe2O3 staining)) — sedimentary

Siltstone with Iron Staining

Siltstone (primarily SiO2 with Fe2O3 staining)

Chert (Flint Nodules) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint Nodules)

Cryptocrystalline Quartz (SiO2)

Hag Stone (Perforated Chert (Microcrystalline Silica, SiO2)) — sedimentary

Hag Stone

Perforated Chert (Microcrystalline Silica, SiO2)

Sandstone (specifically Red Sandstone) (Arenite (SiO2 with Iron Oxide)) — sedimentary

Sandstone (specifically Red Sandstone)

Arenite (SiO2 with Iron Oxide)

Greywhacke (River Pebble) (Graywacke (immature sandstone)) — sedimentary

Greywhacke (River Pebble)

Graywacke (immature sandstone)

Laterite (Laterite (Iron and aluminum-rich residual rock)) — sedimentary

Laterite

Laterite (Iron and aluminum-rich residual rock)

Chert (and Flint variant) (Chert (SiO2)) — sedimentary

Chert (and Flint variant)

Chert (SiO2)

Sandstone (Red) (Arenite (primarily SiO2 with Iron Oxide staining)) — sedimentary

Sandstone (Red)

Arenite (primarily SiO2 with Iron Oxide staining)

Chert (Iron-stained) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Fossiliferous Limestone (Fossiliferous Calclutite / Bio-calcarenite (CaCO3)) — sedimentary

Fossiliferous Limestone

Fossiliferous Calclutite / Bio-calcarenite (CaCO3)

Liesegang Banded Sandstone (Wonderstone) (Ferruginous Sandstone with Liesegang Rings) — sedimentary

Liesegang Banded Sandstone (Wonderstone)

Ferruginous Sandstone with Liesegang Rings

Gneiss (Granitic Gneiss) (Gneiss (from German Gneis, related to 'spark')) — metamorphic

Gneiss (Granitic Gneiss)

Gneiss (from German Gneis, related to 'spark')

Gneiss (specifically a weathered or stream-worn specimen) (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss (specifically a weathered or stream-worn specimen)

Gneiss (Foliated Metamorphic Rock)

Ferruginous Sandstone (Sandstone (arenite) with Limonite/Goethite cement) — sedimentary

Ferruginous Sandstone

Sandstone (arenite) with Limonite/Goethite cement

Quartz (likely a form of massive or vein quartz) (Quartz (SiO₂)) — Mineral

Quartz (likely a form of massive or vein quartz)

Quartz (SiO₂)

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Chert (also known as Flint or Common Chalcedony) (Cryptocrystalline Silica (SiO2)) — sedimentary

Chert (also known as Flint or Common Chalcedony)

Cryptocrystalline Silica (SiO2)

Green Jasper (with Quartz veining) (Jasper (Silica-rich microcrystalline variety of Quartz), formula: SiO2) — sedimentary

Green Jasper (with Quartz veining)

Jasper (Silica-rich microcrystalline variety of Quartz), formula: SiO2

Chert with Quartz Veins (Microcrystalline Quartz (SiO2)) — sedimentary

Chert with Quartz Veins

Microcrystalline Quartz (SiO2)

Granitic Gneiss (Gneiss (high-grade metamorphic rock primarily of quartz, feldspar, and mica)) — metamorphic

Granitic Gneiss

Gneiss (high-grade metamorphic rock primarily of quartz, feldspar, and mica)

Mica Schist (Mica Schist (predominantly Muscovite or Biotite sheet silicates)) — metamorphic

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Gneiss (Schistose) (Gneiss) — metamorphic

Gneiss (Schistose)

Gneiss

Mica Schist with Iron Staining (Mica Schist) — metamorphic

Mica Schist with Iron Staining

Mica Schist

Travertine (Tufa) (Chemical Sedimentary Limestone (CaCO3)) — sedimentary

Travertine (Tufa)

Chemical Sedimentary Limestone (CaCO3)

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

Sandstone

Arenite (composed primarily of SiO2)

Red Jasper (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2)

Chert (Commonly known as Jasper or Flint) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Commonly known as Jasper or Flint)

Microcrystalline silica (SiO2)

Travertine (Tufa) (Chemical Limestone (CaCO3)) — sedimentary

Travertine (Tufa)

Chemical Limestone (CaCO3)

Fossilized Horn Coral (Order Rugosa (Rugose Coral)) — sedimentary

Fossilized Horn Coral

Order Rugosa (Rugose Coral)

Chert Pebble Map (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble Map

Microcrystalline Quartz (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Red Jasper with Quartz and Hematite (Silicon Dioxide (SiO2) with Ferric Iron inclusions) — sedimentary

Red Jasper with Quartz and Hematite

Silicon Dioxide (SiO2) with Ferric Iron inclusions

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Ferruginous Sandstone Pebble (Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH) staining)) — sedimentary

Ferruginous Sandstone Pebble

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH) staining)

Jasper (Jasper (Silicate - SiO2)) — sedimentary

Jasper

Jasper (Silicate - SiO2)

Red Sandstone (Arenite (predominantly Quartz with Hematite cementation)) — sedimentary

Red Sandstone

Arenite (predominantly Quartz with Hematite cementation)

Riverstone Jasper (Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Riverstone Jasper (Chalcedony)

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with impurities

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

Banded Calcite (Cave Onyx) (Calcium Carbonate (CaCO3)) — sedimentary

Banded Calcite (Cave Onyx)

Calcium Carbonate (CaCO3)