Rock Identifier

Category

Sedimentary

Browse sedimentary specimens identified by the Rock Identifier community.

Chert (often called Flint or Jasper) (Microcrystalline silica (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Microcrystalline silica (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Chert (varietal: Flint/River Pebble)

Cryptocrystalline Quartz (SiO2)

Chert (Cherty Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Cherty Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Siliceous Mudstone variant) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Siliceous Mudstone variant)

Microcrystalline quartz (SiO2)

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

Chert (Gravel)

Silicon Dioxide (SiO2)

Asphalt Concrete (Bituminous conglomerate) — sedimentary

Asphalt Concrete

Bituminous conglomerate

Bauxite (Pisolitic Bauxite) (Bauxite (mixture of Hydrous Aluminum Oxides)) — sedimentary

Bauxite (Pisolitic Bauxite)

Bauxite (mixture of Hydrous Aluminum Oxides)

Oolite (Ooids) (Oolitic Limestone (Principal mineral: Calcite, CaCO3)) — sedimentary

Oolite (Ooids)

Oolitic Limestone (Principal mineral: Calcite, CaCO3)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Jasper (River pebble) (Jasper / Silicon Dioxide (SiO2)) — sedimentary

Jasper (River pebble)

Jasper / Silicon Dioxide (SiO2)

Mookaite Jasper (Silicified Radiolarite (SiO2)) — sedimentary

Mookaite Jasper

Silicified Radiolarite (SiO2)

Yellow Jasper (Mookaite style) (Silicon Dioxide (SiO2) with Goethite/Hematite inclusions) — sedimentary

Yellow Jasper (Mookaite style)

Silicon Dioxide (SiO2) with Goethite/Hematite inclusions

Chert (Jasper variation) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Greywacke (River Pebble) (Greywacke sandstone with quartz veining) — sedimentary

Greywacke (River Pebble)

Greywacke sandstone with quartz veining

Jasper with Quartz Veining (Silicon Dioxide (SiO2) - Opaque cryptocrystalline variety of Quartz) — sedimentary

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Opaque cryptocrystalline variety of Quartz

Chert (Iron-stained) (Chert (Microcrystalline and Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert (Iron-stained)

Chert (Microcrystalline and Cryptocrystalline Quartz, SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Coral Fossil (Favosites) (Favosites (Calcite/Calcium Carbonate, CaCO3)) — sedimentary

Coral Fossil (Favosites)

Favosites (Calcite/Calcium Carbonate, CaCO3)

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

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Fossiliferous Limestone with Brachiopod Mold (Calcium Carbonate (CaCO3) matrix containing Brachiopoda fossil impressions) — sedimentary

Fossiliferous Limestone with Brachiopod Mold

Calcium Carbonate (CaCO3) matrix containing Brachiopoda fossil impressions

Petrified Dinosaur Bone (Gembone) (Agatized Dinosaur Bone) — sedimentary

Petrified Dinosaur Bone (Gembone)

Agatized Dinosaur Bone

Chert (Jasper/Mudstone) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Mudstone)

Silicon Dioxide (SiO2)

Chert (Nodule) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Banded Calcite (often sold as Onyx Marble) (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as Onyx Marble)

Calcite (Calcium Carbonate, CaCO3)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Sandstone (Wonderstone) (Silicified Sandstone / Orthoquartzite with Liesegang rings) — sedimentary

Sandstone (Wonderstone)

Silicified Sandstone / Orthoquartzite with Liesegang rings

Chert (specifically Jasper or Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Jasper or Flint variant)

Microcrystalline Quartz (SiO2)

Bloodstone (Heliotrope (cryptocrystalline Quartz, SiO2 with inclusions of Hematite)) — sedimentary

Bloodstone

Heliotrope (cryptocrystalline Quartz, SiO2 with inclusions of Hematite)

Chert (specifically Red Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert or Jasper)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline quartz (SiO2)

Fossilized Gastropod in Chert/Limestone (Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula) — sedimentary

Fossilized Gastropod in Chert/Limestone

Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula

Jasper with Iron Inclusions (Silicon Dioxide (SiO2) with impure Iron Oxides) — sedimentary

Jasper with Iron Inclusions

Silicon Dioxide (SiO2) with impure Iron Oxides

Chert (containing Calcite or Quartz inclusions) (Silicon Dioxide (SiO2) with varying mineral impurities) — sedimentary

Chert (containing Calcite or Quartz inclusions)

Silicon Dioxide (SiO2) with varying mineral impurities

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

Moqui Marble (Ironstone Concretion (Goethite/Hematite)) — sedimentary

Moqui Marble

Ironstone Concretion (Goethite/Hematite)

Chert (Jasper variety) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Jasper variety)

Microcrystalline quartz (SiO2)

Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble

Microcrystalline Quartz (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)