Rock Identifier

Category

Fossil

Browse fossil specimens identified by the Rock Identifier community.

Learn about Fossil in the encyclopedia

Fossil Opal

Fossil Opal

Amber

Amber

Bone Opal

Bone Opal

Turritella Jasper

Turritella Jasper

Fossiliferous Limestone

Fossiliferous Limestone

Turritella Agate

Turritella Agate

Petrified Wood

Petrified Wood

Diatomite

Diatomite

Guano

Guano

Jet

Jet

Diatomaceous Earth

Diatomaceous Earth

Opalized Wood

Opalized Wood

Amber (Succinite) — mineraloid

Amber

Succinite

Amber / Copal (Fossilized Tree Resin (Succinate)) — Mineraloid

Amber / Copal

Fossilized Tree Resin (Succinate)

Baltic Amber (Succinite (Polmerized conifer resin)) — mineraloid

Baltic Amber

Succinite (Polmerized conifer resin)

Glauconitic Sandstone (Glauconitic Quartz Arenite) — sedimentary

Glauconitic Sandstone

Glauconitic Quartz Arenite

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Fossilized Shark Tooth (Otodus) (Otodus sp. (calcium phosphate/hydroxylellite)) — sedimentary

Fossilized Shark Tooth (Otodus)

Otodus sp. (calcium phosphate/hydroxylellite)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Amber (Succinite (Formula: C10H16O)) — Mineraloid

Amber

Succinite (Formula: C10H16O)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Kambaba Jasper (Stromatolite (Fossilized Algae)) — sedimentary

Kambaba Jasper

Stromatolite (Fossilized Algae)

Fossilized Coral (Scleractinian Anthozoa (Fossilized Calcium Carbonate, CaCO3)) — sedimentary

Fossilized Coral

Scleractinian Anthozoa (Fossilized Calcium Carbonate, CaCO3)

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

Amber (Baltic) (Succinith (Fossilized Tree Resin)) — mineraloid

Amber (Baltic)

Succinith (Fossilized Tree Resin)

Amber (Succinite (C10H16O)) — mineral

Amber

Succinite (C10H16O)

Amber (Succinite (organic fossilized resin)) — mineraloid

Amber

Succinite (organic fossilized resin)

Amber (Succinite (C10H16O)) — mineraloid

Amber

Succinite (C10H16O)

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Blue Chalcedony (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Baltic Amber (Butterscotch variety) (Succinite) — Organic Gemstone/Mineraloid

Baltic Amber (Butterscotch variety)

Succinite

Organic Gemstone/Mineraloid

Chert Nodules (with Gryphaea or Shell inclusions) (Microcrystalline Quartz (SiO2) with Calcitic inclusions) — sedimentary

Chert Nodules (with Gryphaea or Shell inclusions)

Microcrystalline Quartz (SiO2) with Calcitic inclusions

Amber (Succinite (specifically for Baltic Amber), Formula: C10H16O) — Mineraloid

Amber

Succinite (specifically for Baltic Amber), Formula: C10H16O

Amber (Amber (Amorphous Organic Hydrocarbon)) — mineral

Amber

Amber (Amorphous Organic Hydrocarbon)

Amber (Fossilized Tree Resin (Succinate)) — mineral

Amber

Fossilized Tree Resin (Succinate)

Pearl (Aragonite (CaCO3) with Conchiolin) — mineral

Pearl

Aragonite (CaCO3) with Conchiolin

Baltic Amber (Butterscotch or Egg Yolk Variety) (Succinite (C10H16O)) — Organic Gemstone (fossilized resin)

Baltic Amber (Butterscotch or Egg Yolk Variety)

Succinite (C10H16O)

Organic Gemstone (fossilized resin)

Amber (Succinite (Resinous fossilized tree sap)) — Mineraloid

Amber

Succinite (Resinous fossilized tree sap)

Oyster Shell (Aragonite/Calcite) (Calcium Carbonate (CaCO3)) — sedimentary

Oyster Shell (Aragonite/Calcite)

Calcium Carbonate (CaCO3)

Chert (specifically Flint or Dark Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Flint or Dark Chert)

Chert (SiO2)

Petoskey Stone (Fossilized Rugose Coral) (Hexagonaria percarinata) — sedimentary

Petoskey Stone (Fossilized Rugose Coral)

Hexagonaria percarinata

Red Ochre (Hematite-rich Clay) (Limonitic/Hematitic Claystone (Fe2O3 with clay minerals)) — Sedimentary

Red Ochre (Hematite-rich Clay)

Limonitic/Hematitic Claystone (Fe2O3 with clay minerals)

Amber (Succinicum (C10H16O)) — mineral

Amber

Succinicum (C10H16O)

Belemnite (Fossilized Rostrum) (Belemnitida (order), specifically Neohibolites or similar genera depending on age) — sedimentary

Belemnite (Fossilized Rostrum)

Belemnitida (order), specifically Neohibolites or similar genera depending on age

Amber (Succinite (Carbon-based organic compound; approximate formula C10H16O)) — Mineraloid

Amber

Succinite (Carbon-based organic compound; approximate formula C10H16O)

Petoskey Stone (Hexagonaria percarinata (Fossilized Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Coral)

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Amber (Succinite (formula varies, primarily C10H16O)) — Mineraloid (Organic)

Amber

Succinite (formula varies, primarily C10H16O)

Mineraloid (Organic)

Mookaite Jasper (Silicified Radiolarite (SiO2)) — sedimentary

Mookaite Jasper

Silicified Radiolarite (SiO2)

Jasper (Petrified Wood variant) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (Petrified Wood variant)

Silicon Dioxide (SiO2) with iron oxide inclusions

Amber (Rough Baltics/Beach Specimen) (Succinicum (Organic Gemstone - Fossilized Resin)) — mineral

Amber (Rough Baltics/Beach Specimen)

Succinicum (Organic Gemstone - Fossilized Resin)

Sandstone (Arenite (SiO2 secondary)) — sedimentary

Sandstone

Arenite (SiO2 secondary)