Rock Identifier

Category

Sedimentary (Fossilized Organic Remain)

Browse sedimentary (fossilized organic remain) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Fossilized Organic Remain) in the encyclopedia

Sapropel

Petrified Wood

Bituminous Shale

Bituminous Shale

Amber

Black Shale

Conglomerate

Jet

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Oil Shale

Kambaba Jasper

Baltic Amber (Raw) (Succinite) — fossil

Baltic Amber (Raw)

Succinite

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

Chert / Flint Jasper

Microcrystalline Quartz (SiO2)

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

Chert (Yellow Jasper)

Cryptocrystalline Quartz (SiO2)

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

Chert (Jasper variation)

Silicon Dioxide (SiO2)

Fossil Shark Tooth (Carcharodon carcharias (modern/recent) or similar Lamniform fossil) — fossil

Fossil Shark Tooth

Carcharodon carcharias (modern/recent) or similar Lamniform fossil

Shale with Iron Staining (Fissile Mudrock (Sedimentary Rock)) — sedimentary

Shale with Iron Staining

Fissile Mudrock (Sedimentary Rock)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Fossilized Sea Urchin (Echinoid) (Echinoidea (Class); commonly Clypeasteroida for sand dollar types) — sedimentary (fossil)

Fossilized Sea Urchin (Echinoid)

Echinoidea (Class); commonly Clypeasteroida for sand dollar types

sedimentary (fossil)

Porphyry (Porphyritic Basalt / Porphyritic Andesite) — igneous

Porphyry

Porphyritic Basalt / Porphyritic Andesite

Porphyry (Porphyritic Igneous Rock (e.g., Porphyritic Andesite/Basalt)) — igneous

Porphyry

Porphyritic Igneous Rock (e.g., Porphyritic Andesite/Basalt)

Porphyritic Basalt (Porphyritic Basalt with Olivine phenocrysts) — igneous

Porphyritic Basalt

Porphyritic Basalt with Olivine phenocrysts

Porphyritic Basalt (Drill Core) (Porphyritic Basalt with Plagioclase Phenocrysts) — igneous

Porphyritic Basalt (Drill Core)

Porphyritic Basalt with Plagioclase Phenocrysts

Fossilized Rugose Coral (Horn Coral) (Order Rugosa) — fossil

Fossilized Rugose Coral (Horn Coral)

Order Rugosa

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

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

Chert (Flint/Jasper variety)

Microcrystalline Quartz (SiO2)

Chert / Flint (Chert (SiO2)) — sedimentary

Chert / Flint

Chert (SiO2)

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

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

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

Chert (Chert Nodule with Chalky Cortex)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Polished tree agate (likely) (Chalcedony (microcrystalline SiO₂) with green dendritic/inclusion minerals) — mineral

Polished tree agate (likely)

Chalcedony (microcrystalline SiO₂) with green dendritic/inclusion minerals

Coral Fossil (Anthozoa (Scleractinia)) — fossil

Coral Fossil

Anthozoa (Scleractinia)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Tiger's Eye (Titanium-containing Quartz (Silica: SiO2)) — Mineral

Tiger's Eye

Titanium-containing Quartz (Silica: SiO2)

Shale (Laminated Fissile Pelite) — sedimentary

Shale

Laminated Fissile Pelite

Sedimentary Sandstone (Arenite (Sedimentary Rock)) — sedimentary

Sedimentary Sandstone

Arenite (Sedimentary Rock)

Fulgurite (Fulgurite (Lechatelierite), amorphous SiO2) — metamorphic

Fulgurite

Fulgurite (Lechatelierite), amorphous SiO2

Porphyritic Basalt (or Porphyry) (Porphyritic Mafic Volcanic Rock) — igneous

Porphyritic Basalt (or Porphyry)

Porphyritic Mafic Volcanic Rock

Fossil Coral (Anthozoa (Scleractinia)) — fossil

Fossil Coral

Anthozoa (Scleractinia)

Pearl (Aragonite (CaCO3) with Conchiolin) — mineral

Pearl

Aragonite (CaCO3) with Conchiolin

Shale (Mudrock / Fissile Shale) — sedimentary

Shale

Mudrock / Fissile Shale

Polished amber (Amber (fossilized plant resin), commonly succinite; organic mineraloid rather than a true mineral) — gemstone

Polished amber

Amber (fossilized plant resin), commonly succinite; organic mineraloid rather than a true mineral

Fossil Shark Tooth (Carcharocles or Lamniformes (order)) — fossil

Fossil Shark Tooth

Carcharocles or Lamniformes (order)

Quartzite (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (primarily SiO2)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Coal (most likely Bituminous or Anthracite) (Coal (organic sedimentary rock)) — Sedimentary

Coal (most likely Bituminous or Anthracite)

Coal (organic sedimentary rock)

Peanut Wood (Petrified Wood (Silicified Araucaria with Teredo boreholes)) — fossil

Peanut Wood

Petrified Wood (Silicified Araucaria with Teredo boreholes)

Tumbled amber-like chalcedony or resinous fossil material (Likely chalcedony (microcrystalline SiO₂), though the appearance could also indicate copal/amber) — gemstone

Tumbled amber-like chalcedony or resinous fossil material

Likely chalcedony (microcrystalline SiO₂), though the appearance could also indicate copal/amber

Burmese Amber (Burmite) (Burmite (C10H16O)) — mineraloid

Burmese Amber (Burmite)

Burmite (C10H16O)

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

Banded Chert / Jasper

Silicon Dioxide (SiO2)

Fossiliferous Limestone with Rugose Coral (Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)) — sedimentary

Fossiliferous Limestone with Rugose Coral

Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)