Mosasaur Jaw Fossil in Matrix
Mosasaurus (family Mosasauridae) in Phosphate Sandstone
sedimentary
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
View all →
Small seashell fossil or shell fragment
Likely calcium-carbonate shell material, chiefly aragonite or calcite; exact species indeterminate
fossil
Amber
Succinite (Resinous fossilized tree sap)
Mineraloid
Amber
Succinite (fossilized resin)
mineral
Amber
Fossilized tree resin
gemstone
Fossilized Bone Fragment
Vertebrate Fossil Material (Apatite/Calcium Phosphate)
fossil
Amber
Fossilized Tree Resin
gemstone
Amber (Copal)
Succinate (Fossilized Resin)
mineraloid
Megalodon Shark Tooth (Partial Fossil)
Otodus megalodon (fossilized in Calcium Phosphate/Apatite)
Mineral/Fossil
Amber with Organic Inclusions
Succinite (fossilized resin)
mineraloid
Amber (specifically Cherry Amber)
Succinite (with the chemical formula C10H16O)
Organic Gemstone (not a mineral)
Amber
Succinite (specifically for Baltic amber); Fossilized Tree Resin (C10H16O)
Organic Mineraloid
Amber
Succinates (Organic Gemstone)
mineral
Sand Tiger Shark Tooth Fossil
Carcharias taurus (fossilized tooth)
fossil
Petrified Wood
Silicified Wood (SiO2 - Quartz/Chalcendony replacing organic matter)
sedimentary
Fossilized Shell in Limestone
Bivalve fossil (CaCO3) in Carbonate Sedimentary Rock
sedimentary
Fossiliferous Limestone with Fossil Fragment
Fossiliferous Limestone (CaCO3 with organic remains)
fossil
Chert (Weathered)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Baltic Amber
Succinite (Polmerized conifer resin)
mineraloid
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Amber
Succinite (fossilized resin)
mineral
Amber
Succinite (fossilized resin)
mineral
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Mineraloid
Fossil Bivalve / Ostreid Shell (Hag Stone / Perforated Pebble)
Phylum Mollusca, Class Bivalvia
fossil
Amber
Succinite (Fossilized Resin C10H16O)
Organic Mineraloid
Amber
Succinite (Organic Gemstone)
mineral
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Organic Gemstone (often associated with Sedimentary sequences)
Amber
Succinite
Organic (Mineraloid)
Amber
Succinite (C10H16O)
mineraloid
Petrified Bone Pebble
Silicified Fossilized Bone
fossil
Chert (with Limestone/Dolomite host)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Oyster Shell (Limestone/Coquina)
Crassostrea (Fossilized Bivalve), Calcium Carbonate (CaCO3)
sedimentary
Amber
Succinite (fossilized resin)
mineraloid
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Coral)
sedimentary
Amber
Succinite (fossilized tree resin, C10H16O)
fossil
Palm Wood Fossil
Palmoxylon
fossil
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
sedimentary
Fossiliferous Limestone
Calcium carbonate matrix with macrofossils (CaCO3)
fossil
Chert (variations include Flint or Jasper)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary