Rock Identifier

Category

Organic (Non Rock)

Browse organic (non rock) specimens identified by the Rock Identifier community.

Learn about Organic (Non Rock) in the encyclopedia

Mudstone

Bituminous Shale

Bituminous Shale

Hornfels

Black Shale

Oil Shale

Argillite

Sapropel

Amber (Succinite (Fossilized Tree Resin)) — fossil

Amber

Succinite (Fossilized Tree Resin)

Aquamarine (Beryl (Be3Al2Si6O18 with Iron traces)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with Iron traces)

Petrified Wood (Silicified wood (Quartz/Chalcedony replacement of Cellulose)) — fossil

Petrified Wood

Silicified wood (Quartz/Chalcedony replacement of Cellulose)

Pale rounded quartz-rich pebble, likely quartzite (Quartzite (mostly microcrystalline SiO₂), possibly quartz-rich sandstone or vein quartz) — metamorphic

Pale rounded quartz-rich pebble, likely quartzite

Quartzite (mostly microcrystalline SiO₂), possibly quartz-rich sandstone or vein quartz

Mammoth or Mastodon Tooth Fossil (Mammuthus / Mammut tooth) — fossil

Mammoth or Mastodon Tooth Fossil

Mammuthus / Mammut tooth

Chert (Chert (SiO₂)) — sedimentary

Chert

Chert (SiO₂)

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

Chert (Flint/Jasper)

Silicon Dioxide (SiO2)

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

Chert / Jasper

Silicon Dioxide (SiO2)

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

Chert (Flint)

Microcrystalline silica (SiO2)

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

Chert (Iron-stained)

Microcrystalline Silica (SiO2)

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

Chert (Black Chert/Flint)

Silicon Dioxide (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Fossil Shark Tooth (Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite) — fossil

Fossil Shark Tooth

Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite

Chert (Arrowhead Fragment) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Amber (Succinit (C10H16O)) — mineraloid

Amber

Succinit (C10H16O)

Fossiliferous Limestone with Rugose Coral (Lithostrotionella (Limestone Matrix - CaCO3)) — sedimentary

Fossiliferous Limestone with Rugose Coral

Lithostrotionella (Limestone Matrix - CaCO3)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Yellow Chert (Chert / Cryptocrystalline Quartz) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Chert (Chert / Cryptocrystalline Quartz)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Glauconite (Greensand Articulated Sandstone) (Glauconite ((K, Na)(Fe, Al, Mg)2(Si, Al)4O10(OH)2)) — sedimentary

Glauconite (Greensand Articulated Sandstone)

Glauconite ((K, Na)(Fe, Al, Mg)2(Si, Al)4O10(OH)2)

Chert (often called Flint) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (often called Flint)

Chert (Silicon Dioxide, SiO2)

Chert Arrowhead (Projectile Point) (Microcrystalline Quartz (Chert/Flint)) — sedimentary

Chert Arrowhead (Projectile Point)

Microcrystalline Quartz (Chert/Flint)

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

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Fossiliferous Limestone (Bioclastic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone

Bioclastic Limestone (Calcium Carbonate, CaCO3)

Amber (Succinite (Fossilized Tree Resin)) — gemstone

Amber

Succinite (Fossilized Tree Resin)

Amber (Succinite (approximate formula C10H16O)) — mineraloid

Amber

Succinite (approximate formula C10H16O)

Anthracite (Anthracite Coal (Carbon)) — sedimentary

Anthracite

Anthracite Coal (Carbon)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Fossiliferous Limestone (Calcium Carbonate (CaCO3) with Bioclasts) — sedimentary

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Bioclasts

Chert (Jasper/Flint variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Desert Rose Fragment (Atypical) / Weathered Chert (Silicon Dioxide (SiO2) or Barium Sulfate (BaSO4) depending on exact mineralogy) — sedimentary

Desert Rose Fragment (Atypical) / Weathered Chert

Silicon Dioxide (SiO2) or Barium Sulfate (BaSO4) depending on exact mineralogy

Amber (Succinates (C10H16O)) — mineraloid

Amber

Succinates (C10H16O)

Banded Siltstone Pebble (Siltstone (primarily SiO2, Al2O3, Fe2O3)) — sedimentary

Banded Siltstone Pebble

Siltstone (primarily SiO2, Al2O3, Fe2O3)

Amber (Succinates (Organic compound: C10H16O)) — mineraloid

Amber

Succinates (Organic compound: C10H16O)

Amber (Succinite (Fossilized Resin)) — gemstone

Amber

Succinite (Fossilized Resin)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Fossilized Shark Tooth (Root Portion) (Selachimorpha (partial specimen)) — fossil

Fossilized Shark Tooth (Root Portion)

Selachimorpha (partial specimen)

Chert (Flint) (Silicon dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Flint)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz