Rock Identifier

Category

Man Made Rock (Sedimentary Analogue)

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

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Petrified Wood (Silicified wood (Quartz/Chalcedony - SiO2)) — sedimentary

Petrified Wood

Silicified wood (Quartz/Chalcedony - SiO2)

Sandstone (Red Sandstone) (Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide)) — sedimentary

Sandstone (Red Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide)

Green Chert (Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Green Chert (Jasper)

Silicon Dioxide (SiO2)

Fossiliferous Shale (Carbonaceous Shale (with potential plant/aquatic fossils)) — sedimentary

Fossiliferous Shale

Carbonaceous Shale (with potential plant/aquatic fossils)

Chert / Flint Conglomerate (Silicified Sedimentary Breccia (primarily SiO2)) — sedimentary

Chert / Flint Conglomerate

Silicified Sedimentary Breccia (primarily SiO2)

Fossiliferous Shale or Slate with Plant Fossils (Fossil-bearing argillaceous rock) — Sedimentary/Metamorphic

Fossiliferous Shale or Slate with Plant Fossils

Fossil-bearing argillaceous rock

Sedimentary/Metamorphic

Greenstone / Glauconitic Siltstone (Metabasalt or Glauconite-rich Sedimentary Rock) — metamorphic or sedimentary

Greenstone / Glauconitic Siltstone

Metabasalt or Glauconite-rich Sedimentary Rock

metamorphic or sedimentary

Halite (Rock Salt) (Halite (Sodium Chloride, NaCl)) — mineral

Halite (Rock Salt)

Halite (Sodium Chloride, NaCl)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Chert (varietal: Flint Pitted Pebble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (varietal: Flint Pitted Pebble)

Cryptocrystalline Quartz (SiO2)

Bauxite (Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)) — sedimentary

Bauxite

Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)

Sandstone (with Iron Staining) (Arenite (SiO2 predominantly)) — sedimentary

Sandstone (with Iron Staining)

Arenite (SiO2 predominantly)

Sandstone (Ferruginous) (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with Fe2O3)

Sandstone (with biological crust) (Arenite (SiO2 based)) — sedimentary

Sandstone (with biological crust)

Arenite (SiO2 based)

River Stone (Chalcedony/Jasper variety) (Microcrystalline Quartz (SiO2)) — sedimentary

River Stone (Chalcedony/Jasper variety)

Microcrystalline Quartz (SiO2)

Fossiliferous Limestone (Calcite (CaCO3) Rich Bio-sedimentary Rock) — sedimentary

Fossiliferous Limestone

Calcite (CaCO3) Rich Bio-sedimentary Rock

Sandstone (Ferruginous) (Arenite (iron-rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (iron-rich)

Garnet Schist (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Garnet Schist

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

Druzy Quartz Geode (Vug) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz Geode (Vug)

Silicon Dioxide (SiO2)

Quartzite Geode or Crystalline Quartz Node (Silicon Dioxide (SiO2)) — metamorphic

Quartzite Geode or Crystalline Quartz Node

Silicon Dioxide (SiO2)

Yellow Chalcedony (Agate or Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate or Citrine Quartz)

Silicon Dioxide (SiO2)

Botryoidal Agate (Silicon Dioxide (SiO2)) — mineral

Botryoidal Agate

Silicon Dioxide (SiO2)

Carnelian (Carnelian (Chalcedony / SiO2)) — mineral

Carnelian

Carnelian (Chalcedony / SiO2)

Druzy Quartz (part of a Geode) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (part of a Geode)

Silicon Dioxide (SiO2)

Fluorite with Quartz coating (Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)) — mineral

Fluorite with Quartz coating

Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Ironstone Concretion (Moqui Marble variety) (Ferruginous Sandstone Concretion) — sedimentary

Ironstone Concretion (Moqui Marble variety)

Ferruginous Sandstone Concretion

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles (Mixed gemstones (primarily Silicon Dioxide - SiO2)) — mineral

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles

Mixed gemstones (primarily Silicon Dioxide - SiO2)

Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

Quartz (Milky Quartz / Quartzite) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz / Quartzite)

Silicon Dioxide (SiO2)

Black Opal (Hydrated silica (SiO2·nH2O)) — mineraloid

Black Opal

Hydrated silica (SiO2·nH2O)

African Turquoise (African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)) — sedimentary

African Turquoise

African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)

Quartz Vein in Host Rock (Breccia/Rhyolite) (Silicon Dioxide (SiO2) with matrix) — Mineral in Igneous/Sedimentary host

Quartz Vein in Host Rock (Breccia/Rhyolite)

Silicon Dioxide (SiO2) with matrix

Mineral in Igneous/Sedimentary host

Chert (specifically Flint or Dark Chert) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Dark Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

White Chalcedony (likely Common Opal or Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

White Chalcedony (likely Common Opal or Milky Quartz)

Silicon Dioxide (SiO2)

Mookaite Jasper (Silicon Dioxide (SiO2) - Radiolarite) — sedimentary

Mookaite Jasper

Silicon Dioxide (SiO2) - Radiolarite

Chert (concretionary/nodular variant) (Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions) — sedimentary

Chert (concretionary/nodular variant)

Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions

Herkimer Diamond (Quartz Crystal) (Silicon Dioxide (SiO2)) — mineral

Herkimer Diamond (Quartz Crystal)

Silicon Dioxide (SiO2)

Chert (Nodular) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Nodular)

Microcrystalline Silica (SiO2)

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

Chert (Nodule)

Silicon Dioxide (SiO2)

Chert (varietal: Flint/Jasper mix) (Hydrous Silica (SiO2)) — sedimentary

Chert (varietal: Flint/Jasper mix)

Hydrous Silica (SiO2)