Tiger Shark Fossil Tooth
Galeocerdo cuvier (fossilized)
sedimentary
Category
Sedimentary (Fossil)
Browse sedimentary (fossil) specimens identified by the Rock Identifier community.
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Tabulate Coral Fossil (Favosites)
Favosites (Commonly known as Honeycomb Coral)
sedimentary
Limestone
Sedimentary Rock (Primarily Calcium Carbonate, CaCO3)
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Limestone (Cliff Formation)
Limestone (predominantly CaCO3 as calcite)
Sedimentary
Fossilized Coral (Petoskey Stone / Hexagonaria)
Hexagonaria percarinata / Rugosa coral
fossil
Fossilized Coral (Petrified Coral)
Lithostrotionella (example genus) / Scleractinia
fossil
Fossilized Crinoid Stem in Matrix
Crinoid (Class: Crinoidea)
fossil
Fossilized Gryphaea (Devil's Toenail)
Gryphaea arcuata (Bivalvia: Gryphaeidae)
fossil
Amber (Burmite)
Fossilized tree resin (Succinite variant)
Organic mineraloid
Sandstone (likely Calcareous or Quartz-rich)
Arenite (SiO2 based typically)
sedimentary
Amber
Succinite (Organic Mineraloid) - C10H16O
mineral
Sandstone (likely Arkosic or Lithic Sandstone)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Ironstone Concretion
Goethite-rich Siltstone / Siderite (FeCO3)
sedimentary
Shale with Iron Oxide Staining
Fissile Mudstone (primarily clay minerals and quartz)
sedimentary
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Fossil Coral
Scleractinia / Rugosa (Silicified Coral)
fossil
Fossil Coral
Hexagonaria or Rugose coral fossil in limestone/silica matrix
fossil
Orthoceras fossil
Orthoceras regulare (Cephalopoda, Orthocerida)
fossil
Coral Fossil
Anthozoa (order Scleractinia)
fossil
Brachiopod Fossil
Phylum Brachiopoda (likely Order Rhynchonellida or Spiriferida)
fossil
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 based)
sedimentary
Red Sandstone
Arenite (Iron-rich)
sedimentary
Sandstone (Quartz-rich Cobble)
Arenite
sedimentary
Sandstone with Iron Staining
Arenite (SiO2 with Fe2O3)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Gray Limestone Pebble
Calcium Carbonate (CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Sandstone (Red)
Arenite (SiO2 with Fe2O3)
sedimentary
Sandstone (Quartz-rich)
Arenite
sedimentary
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Fossil Coral (Petoskey Stone or Favosites)
Favosites (specifically Hexagonaria percarinata if silica-replaced Michigan type)
sedimentary
Siltstone
Siltstone (primarily SiO2, Al2O3)
sedimentary
Siltstone
Siltstone (primarily composed of quartz and clay minerals)
sedimentary
Sandstone
Arenite (compositionally various, primarily SiO2)
sedimentary