Coal (Anthracite / Bituminous)
Organic Sedimentary Rock (Carbon-based)
sedimentary
Category
Sedimentary (Fossilized Organic Remain)
Browse sedimentary (fossilized organic remain) specimens identified by the Rock Identifier community.
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Sandstone with Vitrinite/Coal inclusions
Arenite with Carbonaceous inclusions
sedimentary
Ammonite Fossil (Small Pyritized or Calcitized Internal Mold)
Ammonoidea
sedimentary
Fossiliferous Limestone
Calcareous biomicrite / Calcium Carbonate (CaCO3)
sedimentary
Fossilized Shark Tooth
Bioapatite (Calcium Hydroxyapatite) replacement
mineral
Sand Tiger Shark Tooth Fossil
Carcharias taurus (fossilized tooth)
fossil
Orthoceras Fossil in Limestone
Orthoceras (extinct genus of cephalopods) in Carboniferous or Devonian Limestone
sedimentary
Fossilized Shark Tooth
Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)
sedimentary
Fossilized Shark Tooth
Carcharocles sp. (likely Lemon or Sand Tiger)
sedimentary
Amber
Succinite
Organic Gemstone (sedimentary associations)
Petrified Wood / Fossilized Bone
Silicified / Mineralized Fossil (Silica SiO2)
fossil
Amber
Fossilized Tree Resin
gemstone
Amber
Succinite (Fossilized Resin)
gemstone
Chert (Jasper variation)
Silicon Dioxide (SiO2)
sedimentary
Petrified Wood
Petrified Wood (Silicified Wood)
fossil
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Fossilized Shark Tooth
Eocene Lamniformes (Mackerel Shark clade)
fossil
Fossilized Shark Tooth
Lamniformes (order) fossil
fossil
Flower Jasper
Agatized Fossil Coral / Chalcedony (SiO2)
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Coral)
sedimentary
Olive Sea Shell Fossil
Oliva sp. (Calcium Carbonate, CaCO3)
fossil
Petrified Wood
Fossilized Wood (SiO2 replacing organic matter)
fossil
Amber
Succinite (specifically for Baltic amber); chemical formula approximately C10H16O
Mineraloid
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossil Bivalve / Ostreid Shell (Hag Stone / Perforated Pebble)
Phylum Mollusca, Class Bivalvia
fossil
Chert (specifically Flint or Gray Chert)
Silicon Dioxide (SiO2)
sedimentary
Amber
Fossilized tree resin
gemstone
Amber
Succinite (Fossilized Resin)
gemstone
Amber
Fossilized Resin (C10H16O)
mineral
Amber
Succinite (C10H16O)
mineral
Amber
Succinite (approximate formula C10H16O)
mineraloid
Amber
Succinite (fossilized tree resin, C10H16O)
fossil
Favosites Fossil (Honeycomb Coral)
Favosites (Extinct genus of Tabulate Coral)
sedimentary
Fossilized Shark Tooth
Chondrichthyes (class)
fossil
Small seashell fossil or shell fragment
Likely calcium-carbonate shell material, chiefly aragonite or calcite; exact species indeterminate
fossil
Petrified Wood
Silicified Wood (SiO2 - Quartz/Chalcendony replacing organic matter)
sedimentary
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Fossilized Shark Tooth
Otodus sp. (approximate genus) / Hydroxyapatite fossil
sedimentary
Fossil Shark Tooth
Otodus sp. or Carcharocles sp. (likely fossilized Chondrichthyes)
fossil
Amber
Succinite (Fossilized Resin C10H16O)
Organic Mineraloid
Amber
Fossilized Tree Resin
gemstone
Amber (Copal)
Succinate (Fossilized Resin)
mineraloid