Fossilized Bone
Petrified Bone (Fluorapatite / Calcium Phosphate replacement)
fossil
Category
Sedimentary (Fossilized Organic Remain)
Browse sedimentary (fossilized organic remain) specimens identified by the Rock Identifier community.
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Oyster Shell Fragment
Crassostrea virginica (or related Bivalvia)
fossil
Fossiliferous Limestone
Limestone with embedded fossil cross-section
sedimentary
Fossilized Tooth
Vertebrate Fossilized Tooth (Mineralized Biogenic Material)
fossil
Amber (Copal)
Fossilized Tree Resin (C10H16O)
mineral
Sand Tiger Shark Tooth
Carcharias taurus (fossilized)
fossil
Fossilized Bone (Petrified Bone)
Permineralized Vertebrate Remains
sedimentary
Baltic Amber
Succinite (Fossilized Tree Resin)
fossil
Dendritic Limestone
Calcite with Manganese Oxide (Manganese Dendrites)
sedimentary
Petrified Wood (Agatized/Silicified Wood)
Silicified Wood / Chalcedony (SiO2)
sedimentary
Fossilized Gastropod / Coral
Phylum Mollusca / Cnidaria (Silicified or Calcified)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Fossilized Coral
Cnidaria (Anthozoa), often replaced by Calcium Carbonate (CaCO3) or Silica (SiO2)
sedimentary
Amber
Succinates (Fossilized Tree Resin)
fossil
Amber / Copal
Succinite (fossilized tree resin)
mineraloid
Fossiliferous Limestone
Calcium carbonate matrix with macrofossils (CaCO3)
sedimentary
Amber
Succinate (Fossilized Tree Resin)
mineraloid
Chert (Green Fossilized Algae or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Mosasaur Tooth Fossil
Mosasaurus sp.
fossil
Petrified Bone (Fossil Bone)
Per mineralization fossil bone (varies by organism, predominantly replacement by SiO2 - Quartz/Chalcedony)
fossil
Ironstone Concretion (Limonite/Goethite)
Iron oxide concretion (contains FeO(OH)·nH2O)
sedimentary
Amber
Fossilized Tree Resin (Succinate)
mineral
Chalcedony in Matrix (likely Agatized Coral or Chert)
Silicon Dioxide (SiO2)
sedimentary
Fossilized Coral
Cnidaria fossil / Calcite-replaced coral
fossil
Amber
Succinite (Fossilized Tree Resin)
fossil
Amber / Copal
Organic resin, C10H16O
mineral
Fossilized Coral
Scleractinia (fossil order), primarily Calcium Carbonate (CaCO3)
sedimentary
Amber (specifically Red or Cherry Amber)
Succinite (Resinite); Chemical formula: C10H16O
Mineraloid
Sandstone
Arenite (SiO2 predominantly)
sedimentary
Fossilized Vertebra
Chordata fossil (Vertebra)
fossil
Fossilized Bone
Permineralized Bone (Vertebrate Fossil)
fossil
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Shark Tooth Fossil
Vertebrate fossilized tooth (Chondrichthyes)
fossil
Amber
Succinite (fossilized resin); C10H16O
mineraloid
Fossiliferous Limestone (with Crinoids)
CaCO3 (Calcium Carbonate)
sedimentary
Chert (Fossiliferous)
Silicon dioxide (SiO2)
sedimentary
Fossilized Tooth Fragment
Vertebrate Fossil (Mammalia indet.)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Fossil-bearing sedimentary rock, possibly fossil wood or bone
Indeterminate silicified/carbonate fossil in sandstone or mudstone
fossil
Chert (or Fossiliferous Limestone)
Microcrystalline Quartz (SiO2) / Calcium Carbonate (CaCO3)
sedimentary
Fossilized Coral
Scleractinian Anthozoa (Fossilized Calcium Carbonate, CaCO3)
sedimentary
Fossiliferous Limestone
Biogenic Limestone (CaCO3 with fossil fragments)
sedimentary