Brachiopod Fossil (Spiriferid)
Order Spiriferida (Phylum Brachiopoda); mineralized as Calcite (CaCO3) or Chert (SiO2)
sedimentary (fossilized organic remain)
Category
Sedimentary (Fossilized Organic Remain)
Browse sedimentary (fossilized organic remain) specimens identified by the Rock Identifier community.
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Fossil Shark Tooth
Odontaspididae (likely Carcharias sp.)
fossil
Zebra Rock (Zebra Stone / Ribbon Stone)
Siltstone with Ferruginous Banding (Primarily Quartz, Kaolinite, and Hematite)
sedimentary
Pearl (in a decorative hair comb setting)
Calcium carbonate (CaCO3) primarily as Aragonite, bonded with Conchiolin
Organic Mineraloid
Petrified Wood Fragment
Silicified Wood (SiO2)
fossil
Coral Fossil
Anthozoa (order Scleractinia)
fossil
Obsidian and Fossilized Shark Tooth
Obsidian (Volcanic Glass) and Otodus sp. (Fossilized shark tooth)
igneous and fossil
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Amber (Copal)
Fossilized Tree Resin
mineraloid
Fossilized Nut / Coprolite / Concretion
Trace Fossil / Permineralized Plant Material
fossil
Fossiliferous Shale
Carbonaceous Shale (with potential plant/aquatic fossils)
sedimentary
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Coprolite
Fossilized Feces
fossil
Seashell Fossil
Gastropoda fossil
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2)
mineral
Spondylus Oyster Calcification / Fossilized Oyster
Spondylus (Thorny Oyster) / Calcium Carbonate (CaCO3)
sedimentary
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with marine fossils
fossil
Chert (Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Amber
Succinate (Fossilized Resin)
mineral
Flint with Fossil Inclusion
Cryptocrystalline quartz (SiO2) enclosing fossilized organic remains
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
fossil
Lignite (Brown Coal)
Humic Lignite (Carbonaceous sedimentary rock)
sedimentary
Amber (and Cubic Zirconia)
Fossilized Tree Resin
mineraloid
Coprolite
Fossilized Feces
sedimentary
Manganese Dendrite on Siltstone
Manganese Oxide (pyrolusite or psilomelane) Dendrites
mineral/sedimentary
Amber (Copal)
Succinate (Fossilized Tree Resin)
mineraloid
Fossiliferous Sandstone
Sedimentary rock containing invertebrate fossils
fossil
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Fossiliferous Limestone
Limestone (Calcium Carbonate - CaCO3)
sedimentary
Amber
Fossilized Tree Resin
gemstone
Amber
Succinite (Fossilized Resin)
mineral
Amber
Succinate (Organic Fossilized Resin)
mineraloid
Amber
Succinite (fossilized resin)
mineral
Amber
Succinite (a fossilized organic resin)
mineral
Fossiliferous Limestone / Petrifaction
Sedimentary rock with fossil inclusions / Calcium Carbonate (CaCO3)
fossil
Fossilized Bivalve Shell (Fossilized Clam)
Bivalvia (class) / CaCO3 (Calcium Carbonate)
fossil
Amber / Copal
Fossilized Tree Resin (Succinate)
Mineraloid
Amber (Copal)
Succinite (fossilized resin)
mineral
Calligraphy Stone
Mariam Jasper (Fossiliferous Limestone with Hematite and Iron)
sedimentary
Fossilized Coprolite
Coprolite (fossilized feces)
sedimentary