Rock Identifier

Category

Sedimentary (Fossiliferous)

Browse sedimentary (fossiliferous) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Fossiliferous) in the encyclopedia

Fossiliferous Limestone

Fossiliferous Limestone

Shelly Limestone

Shelly Limestone

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Coal

Kambaba Jasper

Limestone

Asphalt Rock

Claystone

Mudstone

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

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

Flint / Chert

Microcrystalline quartz (SiO2)

Yellow Chalcedony (Carnelian / Agate Pebbles) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Carnelian / Agate Pebbles)

Silicon Dioxide (SiO2)

Agate (Chalcedony Nodule) (Silicon Dioxide (SiO2)) — mineral

Agate (Chalcedony Nodule)

Silicon Dioxide (SiO2)

Rough Chalcedony / Jasper Nodules (Silicon Dioxide (SiO2)) — mineral

Rough Chalcedony / Jasper Nodules

Silicon Dioxide (SiO2)

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

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

Chert/Jasper

Microcrystalline Quartz (SiO2)

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

Chert / Flint

Microcrystalline Quartz (SiO2)

Banded Agate (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Agate

Cryptocrystalline Quartz (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Agate (Chalcedony (SiO2) with impurities) — sedimentary

Agate

Chalcedony (SiO2) with impurities

Agate (Carnelian type) (Silicon Dioxide (SiO2)) — mineral

Agate (Carnelian type)

Silicon Dioxide (SiO2)

Chert (River Pebble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (River Pebble)

Cryptocrystalline Quartz (SiO2)

Chert (Field Stone) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Field Stone)

Microcrystalline Quartz (SiO2)

Apatite (Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Apatite

Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))

Howlite (Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)) — mineral

Howlite

Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)

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

Selenite (Satin Spar)

Gypsum (CaSO4·2H2O)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Almandine Garnet (Almandine (Fe3Al2(SiO4)3)) — metamorphic

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Amethyst Geode Fragment (Quartz (SiO2) with trace iron impurities) — mineral

Amethyst Geode Fragment

Quartz (SiO2) with trace iron impurities

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Travertine (Calcium Carbonate (CaCO3)) — sedimentary

Travertine

Calcium Carbonate (CaCO3)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Murex Fossil (Muricidae (Calcium Carbonate fossilization)) — fossil

Murex Fossil

Muricidae (Calcium Carbonate fossilization)

Zoisite with Ruby (Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)) — metamorphic

Zoisite with Ruby

Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)

Chert (often colloquially called Flint) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often colloquially called Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Mixed Gemstone and Mineral Collection (Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)) — mineral

Mixed Gemstone and Mineral Collection

Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)

Yellow Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Psilomelane (Black Hematite varietal) (Barium Manganese Oxide (Ba,H2O)2Mn5O10) — mineral

Psilomelane (Black Hematite varietal)

Barium Manganese Oxide (Ba,H2O)2Mn5O10

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

Howlite (Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)) — mineral

Howlite

Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)

Chert (Nodule) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode (Quartz (Silicon Dioxide, SiO2) in a Geode) — sedimentary

Quartz Geode

Quartz (Silicon Dioxide, SiO2) in a Geode