Rock Identifier

Category

Sedimentary Like (Industrial Composite)

Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.

Crinoid Columnal Fossil (Crinoid ossicle (Class Crinoidea)) — sedimentary

Crinoid Columnal Fossil

Crinoid ossicle (Class Crinoidea)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Chert (Jasper/Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Chalcedony)

Microcrystalline Quartz (SiO2)

Fossilized Coral (Favosites) (Favosites goldfussi / Tabulata) — sedimentary

Fossilized Coral (Favosites)

Favosites goldfussi / Tabulata

Fossil Shark Tooth (Sand Tiger or Mackerel Shark) (Carcharias sp. or Otodus sp. replaced by Hydroxylapatite/Calcium Carbonate) — sedimentary

Fossil Shark Tooth (Sand Tiger or Mackerel Shark)

Carcharias sp. or Otodus sp. replaced by Hydroxylapatite/Calcium Carbonate

Sandstone (with Manganese staining) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (with Manganese staining)

Arenite (composed primarily of SiO2)

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

Chert (Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Sandstone (Arenite (CaCO3/SiO2 cemented quartz)) — sedimentary

Sandstone

Arenite (CaCO3/SiO2 cemented quartz)

Yellow Chert (River Stone) (Microcrystalline Quartz (SiO2)) — sedimentary

Yellow Chert (River Stone)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

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

Chert (Iron-stained)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Red Sandstone (Arenite (primarily Quartz with Hematite cement)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Chert (specifically Pink/Tan Chert) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Pink/Tan Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone (Quartz Arenite) (Sandstone (Chemical formula: primarily SiO2)) — sedimentary

Sandstone (Quartz Arenite)

Sandstone (Chemical formula: primarily SiO2)

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

Sandstone (specifically Red Sandstone)

Arenite (SiO2 with Iron Oxide)

Sandstone Concretion with Fossil Wood (Ferruginous Sandstone Concretion (SiO2 with Fe2O3 cement)) — sedimentary

Sandstone Concretion with Fossil Wood

Ferruginous Sandstone Concretion (SiO2 with Fe2O3 cement)

Fossiliferous Limestone with Rugose Coral (Rugosa (order), typically preserved in CaCO3 (Calcite)) — sedimentary

Fossiliferous Limestone with Rugose Coral

Rugosa (order), typically preserved in CaCO3 (Calcite)

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

Sandstone (Red)

Arenite (primarily SiO2 with Iron Oxide staining)

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

Sandstone (Flagstone)

Arenite (composed primarily of SiO2)

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

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Chert Nodule (Microcrystalline Silica (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Silica (SiO2)

Fossiliferous Limestone with Brachiopod shell (Calcium carbonate (CaCO3)) — sedimentary

Fossiliferous Limestone with Brachiopod shell

Calcium carbonate (CaCO3)

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

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Conglomerate (Conglomerate (Clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (Clastic sedimentary rock)

Conglomerate (Conglomerate (Clastic Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

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

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

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

Chert (Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

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

Chert (Flint)

Silicon dioxide (SiO2)

Satin Spar Selenite (Gypsum (CaSO4·2H2O)) — mineral

Satin Spar Selenite

Gypsum (CaSO4·2H2O)

Halite (Sodium Chloride (NaCl)) — Mineral

Halite

Sodium Chloride (NaCl)

Chert (Silicon dioxide (SiO2)) — Sedimentary

Chert

Silicon dioxide (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Chert (specifically Jasper or Flint) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Jasper or Flint)

Cryptocrystalline Quartz (SiO2)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Septarian Nodule (Yellow Calcite in Limestone) (Septarian Concretion (CaCO3 with Aragonite and Calcite)) — sedimentary

Septarian Nodule (Yellow Calcite in Limestone)

Septarian Concretion (CaCO3 with Aragonite and Calcite)

Red Jasper (Jasper (Silica/Microcrystalline Quartz with Hematite inclusions), SiO2) — sedimentary

Red Jasper

Jasper (Silica/Microcrystalline Quartz with Hematite inclusions), SiO2

Chert (Yellow Jasper) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Cryptocrystalline Quartz (SiO2)

Specular Hematite (on Schist/Matrix) (Hematite (Alpha-Fe2O3)) — mineral

Specular Hematite (on Schist/Matrix)

Hematite (Alpha-Fe2O3)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Quartz (Druzy)

Silicon Dioxide (SiO2)