Fossilized Shark Tooth (Sand Tiger)
Carcharias taurus (fossil specimen)
sedimentary
Category
Sedimentary (Fossilized Organic Remain)
Browse sedimentary (fossilized organic remain) specimens identified by the Rock Identifier community.
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Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Fossil Coral
Scleractinia (Fossilized Coral)
fossil
Spinosaurid Dinosaur Tooth
Spinosaurus aegyptiacus (fossilized)
fossil
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Meta-quartzite (SiO2)
metamorphic
Fossilized Brachiopod/Bivalve in Limestone
Brachiopoda or Bivalvia fossil in Calcite/Limestone (CaCO3)
sedimentary
Unakite Jasper / Unakite
Altered Granite (containing Epidote, Orthoclase Feldspar, and Quartz)
metamorphic
Fossilized Gastropod Shell
Gastropoda (Fossilized internal mold or shell body)
fossil
Petoskey Stone
Hexagonaria percarinata
sedimentary
Fossilized Shark Tooth
Fossilised Chondrichthyes dental specimen (likely Otodus or Carcharias sp.)
mineral
Fossilized Oyster Shell
Gryphaea or Exogyra (Family Ostreidae)
fossil
Glauconitic Sandstone with possible Trace Fossil
Glauconitic Sandstone (K(Fe,Al)2(Si,Al)4O10(OH)2)
sedimentary
Sandstone with Manganese Dendrites
Clastic Sedimentary Rock (SiO2 based with MnO2 inclusions)
sedimentary
Mookaite Jasper
Mookaite (variety of Chert/Jasper), Silicon Dioxide - SiO2
sedimentary
Fossil Coral (Rugose)
Rugosa (Order), often preserved in Limestone (CaCO3)
sedimentary
Fossilized Turritella Gastropod (Internal Mold)
Turritella (Fossil Gastropod Crust)
sedimentary
Boxwork Quartz / Septarian Jasper
Boxwork (SiO2 with iron oxide inclusions)
metamorphic
Graywacke with Quartz Veins
Argillaceous Sandstone (Graywacke)
sedimentary
Amber
Succiniferous fossil resin (C10H16O)
fossil
Amber with Fossil Inclusion
Fossilized Tree Resin (Succinite)
fossil
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Fossil Coral
Fossilized Scleractinia or Tabulata (various genera/species)
Sedimentary
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Shark Tooth in Matrix
Otodus obliquus (Chondrichthyes: Lamniformes)
fossil
Fossiliferous Sandstone / Quartzite Pebble
Sedimentary rock with skeletal fragments (e.g., Paleozoic crinoid/brachiopod fossils)
fossil
Fulgurite
Lechatelierite (vitreous silica tube)
mineral
Quartzite with Iron Inclusions
Metamorphosed Quartz-rich Rock (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite (River-worn Cobble)
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
sedimentary
Favosites Fossil (Honeycomb Coral)
Favosites (Extinct genus of tabulate coral)
sedimentary
Petoskey Stone
Hexagonaria percarinata
sedimentary
Chert / Fossilized Burrow Cast
Microcrystalline Quartz (SiO2) with Trace Carbonates
sedimentary
Fossilized Oyster (Gryphaea or Exogyra)
Crassostrea / Gryphaea (Bivalvia)
sedimentary
Fossiliferous Limestone (Coquina-like)
Biogenic Limestone
sedimentary
Goniatite Fossil
Goniatitida (Order), fossilized in limestone/calcite (CaCO3)
sedimentary
Coral Fossil (or Tumbled Shell/Coral fragment)
Anthozoa (Fossilized Coral)
fossil
Brachiopod Fossil
Phylum Brachiopoda (likely Order Rhynchonellida or Spiriferida)
sedimentary
Fossilized Crinoid Stem Columnal
Phylum Echinodermata; Class Crinoidea (CaCO3)
sedimentary
Fossil Coral
Rugose Coral or Tabulate Coral (Phylum Cnidaria)
fossil