Rock Identifier

Category

Organic Gemstone (Fossilized Resin)

Browse organic gemstone (fossilized resin) specimens identified by the Rock Identifier community.

Learn about Organic Gemstone (Fossilized Resin) in the encyclopedia

Amber

Petrified Wood

Sapropel

Jet

Bituminous Shale

Bituminous Shale

Red Garnet

Black Shale

Opalized Wood

Peat

Oil Shale

Kambaba Jasper

Diatomaceous Earth

Sandstone (Limonitic/Arkose) (Sandstone (primarily SiO2 with FeO(OH)·nH2O)) — sedimentary

Sandstone (Limonitic/Arkose)

Sandstone (primarily SiO2 with FeO(OH)·nH2O)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone Pebble (Arenite) — sedimentary

Sandstone Pebble

Arenite

Snakeskin Jasper (Microcrystalline Quartz (SiO2) with iron inclusions) — sedimentary

Snakeskin Jasper

Microcrystalline Quartz (SiO2) with iron inclusions

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Sandstone with Liesegang Rings (Clastic Sedimentary Rock with Iron Oxide Precipitates (SiO2 + Fe2O3)) — sedimentary

Sandstone with Liesegang Rings

Clastic Sedimentary Rock with Iron Oxide Precipitates (SiO2 + Fe2O3)

Quartz Conglomerate (Quartz Conglomerate (clastic sedimentary rock)) — sedimentary

Quartz Conglomerate

Quartz Conglomerate (clastic sedimentary rock)

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)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Pearl (Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3) — mineral

Pearl

Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3

Red Coral (Sponge Coral / Apple Coral) (Corallium rubrum (calcium carbonate / organic gem)) — gemstone

Red Coral (Sponge Coral / Apple Coral)

Corallium rubrum (calcium carbonate / organic gem)

Natural Freshwater Pearl (Calcium Carbonate (Aragonite and Calcite), CaCO3) — gemstone

Natural Freshwater Pearl

Calcium Carbonate (Aragonite and Calcite), CaCO3

Bryozoan Fossil (Phylum Bryozoa (commonly known as 'moss animals')) — sedimentary

Bryozoan Fossil

Phylum Bryozoa (commonly known as 'moss animals')

Pink Coral (Corallium rubrum (or related species, composed of calcium carbonate)) — gemstone

Pink Coral

Corallium rubrum (or related species, composed of calcium carbonate)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Melo Melo Pearl (or Golden Chalcedony / Yellow Jasper Sphere) (Non-nacreous calcium carbonate pearl (or SiO2 - Silicon Dioxide)) — gemstone

Melo Melo Pearl (or Golden Chalcedony / Yellow Jasper Sphere)

Non-nacreous calcium carbonate pearl (or SiO2 - Silicon Dioxide)

Fossil Shark Tooth (Chondrichthyes dentition (Fossilized Tooth)) — fossil

Fossil Shark Tooth

Chondrichthyes dentition (Fossilized Tooth)

Mosasaur Tooth (Mosasaurus beaugei (Fossilized Tooth)) — fossil

Mosasaur Tooth

Mosasaurus beaugei (Fossilized Tooth)

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

Petoskey Stone

Hexagonaria percarinata (Fossilized Coral)

Coprolite (Fossilized feces (various taxa)) — sedimentary

Coprolite

Fossilized feces (various taxa)

Spinosaurus Tooth (Spinosaurus aegyptiacus (fossilized in Hydroxyapatite)) — sedimentary

Spinosaurus Tooth

Spinosaurus aegyptiacus (fossilized in Hydroxyapatite)

Red Coral (Corallium rubrum) — mineral

Red Coral

Corallium rubrum

Petoskey Stone (Hexagonaria percarinata) — fossil

Petoskey Stone

Hexagonaria percarinata

Belemnoidea (Belemnite Guard) (Belemnitida (calcitic rostrum)) — sedimentary

Belemnoidea (Belemnite Guard)

Belemnitida (calcitic rostrum)

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

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata

Engineer Quartz/Quartzite (SiO2 (Silicon Dioxide with binders)) — Sedimentary or metamorphic-derived

Engineer Quartz/Quartzite

SiO2 (Silicon Dioxide with binders)

Sedimentary or metamorphic-derived

Engineered Quartz Stone (Agglomerated Quartz (SiO2 + Polymer Resin)) — mineral-based composite

Engineered Quartz Stone

Agglomerated Quartz (SiO2 + Polymer Resin)

mineral-based composite

Pearl (Organic gemstone (Calcium carbonate / CaCO3 + Conchiolin)) — mineral

Pearl

Organic gemstone (Calcium carbonate / CaCO3 + Conchiolin)

Fossil Shell (Invertebrate fossil (Mollusca)) — fossil

Fossil Shell

Invertebrate fossil (Mollusca)

Precious Red Coral (Corallium rubrum (Calcium Carbonate, CaCO3)) — Mineral (Organic Gemstone)

Precious Red Coral

Corallium rubrum (Calcium Carbonate, CaCO3)

Mineral (Organic Gemstone)

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Ammonite Fossil (Ammonoidea (typically preserved as Calcite or Aragonite)) — sedimentary

Ammonite Fossil

Ammonoidea (typically preserved as Calcite or Aragonite)

Limestone (Flagstone) (Fossiliferous Limestone (CaCO3)) — sedimentary

Limestone (Flagstone)

Fossiliferous Limestone (CaCO3)

Fulgurite (Lechatelierite (Fused Silica)) — mineral

Fulgurite

Lechatelierite (Fused Silica)

Coal (Bituminous or sub-bituminous coal (carbonaceous rock)) — sedimentary

Coal

Bituminous or sub-bituminous coal (carbonaceous rock)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Tree Agate (Dendritic Chalcedony (SiO2)) — sedimentary

Tree Agate

Dendritic Chalcedony (SiO2)

Coal (Bituminous) (Sedimentary carbonaceous rock) — sedimentary

Coal (Bituminous)

Sedimentary carbonaceous rock

Sandstone (Arenite (composed of SiO2, CaCO3, or iron oxides)) — sedimentary

Sandstone

Arenite (composed of SiO2, CaCO3, or iron oxides)

Fossilized Coral (Petrified Coral) (Anthozoa (Scleractinia)) — sedimentary

Fossilized Coral (Petrified Coral)

Anthozoa (Scleractinia)