French Bulldog (Blue Variety)
Canis lupus familiaris
Organic (Biological Organism)
Category
Organic (Biological Organism)
Browse organic (biological organism) specimens identified by the Rock Identifier community.
Learn about Organic (Biological Organism) in the encyclopedia
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Biological Bone (Patella/Knee)
Patella (part of the Human Skeletal System)
Organic Structure (Not a Rock)
Fossilized Shell in Limestone
Carbonate sedimentary rock with Bivalvia or Brachiopoda remains
fossil
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with organic fossil inclusions
sedimentary
Pearl (in Marcasite Jewelry)
Biogenic Calcium Carbonate (primarily Aragonite, CaCO3)
gemstone
Fossilized Coral (Petrified Coral)
Lithostrotionella (example genus) / Scleractinia
fossil
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Limestone (containing Fossil Mold)
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized coral or stromatoporoid fragment
Likely tabulate coral (order Tabulata) or stromatoporoid; exact identification requires microscopy
fossil
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Amber
Succinite (organic hydrocarbon)
mineraloid
Fossil Shell Fragment
Invertebrate fossil (phylum Mollusca)
fossil
Amber
Succinite (C10H16O)
mineral
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Organic Gemstone (often associated with Sedimentary sequences)
Chert / Jasper Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint/Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (and Fossilized Brachiopod shell)
Sedimentary Cryptocrystalline Quartz (SiO2)
sedimentary
Amber
Fossilized Resin (C10H16O)
mineral
Fossiliferous Limestone / Fossil Fragment
Calcium Carbonate Matrix with Biogenic Inclusions (CaCO3)
fossil
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Fossil-bearing rock, possibly with a fossilized shell or coralline specimen
Indeterminate fossil in sedimentary matrix; precise identification is not possible from the image
fossil
Amber (Copal)
Succinite (fossilized tree resin)
mineral
Porous fossil fragment (possibly fossilized coral or shell)
Unidentified fossil carbonate; likely calcite/aragonite
fossil
Moss-covered Limestone with Quartz/Calcite Pocket
Calcium Carbonate (CaCO3) rock with biological moss coating
sedimentary
Turquoise and Red Coral
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Red Coral: Corallium rubrum (organic gemstone)
mineral
Kidney Stone (Urolith / Calcium Oxalate Stone)
Calcium Oxalate Monohydrate (Whewellite) / Calcium Oxalate Dihydrate (Weddellite)
mineral
Limestone with Lichen
Calcium Carbonate (CaCO3) with Endolithic/Epilithic Lichen
sedimentary
Amber
Succinite (fossilized resin)
mineral
Gastropod Steinkern (Internal Mold Fossil)
Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix
sedimentary
Amber
Succinate (Fossilized Tree Resin)
mineraloid
Fossiliferous limestone, possibly coral or stromatoporoid fossil
Calcitic limestone; predominantly CaCO₃, with fossilized colonial-organism structures
fossil
Weathered fossil shell fragment
Indeterminate bioclastic carbonate, likely molluscan shell (calcium carbonate, commonly aragonite or calcite)
fossil
Fossilized shell or bone fragment
Indeterminate biogenic carbonate/phosphate fossil; likely a fragment of fossil shell or small vertebrate bone
fossil
Raw Amber / Resin Mineral
Succinite (Fossilized Tree Resin)
gemstone
Polished fossiliferous stone, possibly fossiliferous limestone
Fossil-bearing carbonate rock; exact fossil and host-rock identification cannot be confirmed from the image
fossil
Amber
Succinite (C10H16O)
mineraloid
Fossilized Bone (Petrified Bone)
Permineralized Vertebrate Remains
sedimentary
Chert / Fossilized Burrow Cast
Microcrystalline Quartz (SiO2) with Trace Carbonates
sedimentary
Coral Fossil (Scleractinia)
Scleractinia (Order), primarily CaCO3 (Aragonite or Calcite)
sedimentary
Amber
Succinite
Organic Mineraloid
Amber
Succinite (with a generalized formula of C10H16O)
mineral