Amber
Succinite
Organic mineraloid
Category
Sedimentary (Fossilized)
Browse sedimentary (fossilized) specimens identified by the Rock Identifier community.
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Fossilized Coral (Petoskey Stone or similar Rugose Coral)
Hexagonaria percarinata (or similar Rugose/Tabulate coral)
fossil
Fossilized Shark Tooth (Scapanorhynchus)
Scapanorhynchus texanus
fossil
Crinoid Stem Fossil
Crinoid columnal (Echinodermata)
fossil
Amber
Succinate (Succinite for Baltic varieties)
Organic Mineraloid
Amber
Succinite (approximate formula C10H16O)
mineral
Basalt (with possible dendritic inclusions)
Extrusive mafic igneous rock
igneous
Fossilized shell or brachiopod
Likely a calcareous brachiopod or bivalve fossil; exact identification requires clearer detail and scale
fossil
Fossilized bivalve shell
Bivalvia (likely a venerid or similar clam); shell composed mainly of CaCO₃ as aragonite/calcite
fossil
Fossilized wood fragment
Petrified wood; commonly silicified fossil wood (SiO₂ replacing organic tissue)
fossil
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Fossilized Horn Coral
Rugosa (Tetracoralla)
fossil
Fossilized Horn Coral
Rugosa (Rugose coral)
fossil
Fossilized Shark Tooth
Elasmobranchii (tooth fossil, composed mainly of Bioapatite / Calcium Phosphate)
fossil
Amber (Rough)
Succinite (Resinite)
gemstone
Amber
Succinite (approximate formula C10H16O)
mineraloid
Kambaba Jasper (Crocodile Jasper)
Stromatolite Fossil (Silicified Stromatolite / Quartz with Microfossils)
fossil
Kimberlite
Kimberlite
igneous
Pink Orthoclase Feldspar with Dendrites
Orthoclase (KAlSi3O8) with Manganese Oxide dendrites
mineral
Dendritic Opal
Opalized Chalcedony with Manganese Inclusions (SiO2 · nH2O)
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
mineral
Petoskey Stone (Fossilized Rugose Coral)
Hexagonaria percarinata
fossil
Shale
Shale (clastic sedimentary rock)
Sedimentary
Fossilized oyster shell
Bivalvia; likely an oyster (Ostreidae), partly mineralized with calcite
fossil
Fossilized Horse Tooth
Equus sp. (Tooth)
fossil
Fossilized Horn Coral
Rugosa (Order)
fossil
Fossilized Shark Tooth
Chondrichthyes (Class) - likely Carcharodon or Otodus genus
fossil
Fossilized Shark Tooth
Elasmobranchii gen. sp. indet. (Calcium Phosphate - Ca5(PO4)3(OH,F,Cl))
fossil
Fossilized Shark Tooth
Elasmobranchii (various species, possibly Carcharias or Odontaspis)
fossil
Fossilized Coral in Chert
Anthozoa (Class) fossil in Cryptocrystalline Quartz (SiO2)
fossil
Fossilized Rugose Coral
Order Rugosa
fossil
Fossilized Rugose Coral
Order Rugosa
fossil
Fossilized Shark Tooth (Root Portion)
Selachimorpha (partial specimen)
fossil
Fossilized Coral (Petoskey Stone / Favosites)
Hexagonaria percarinata / Favosites sp.
fossil
Fossilized Coral / Fossiliferous Limestone
Anthozoa fossil in Limestone (CaCO3)
fossil
Fossilized Tabulate Coral in Sandstone/Limestone
Favosites (Order: Tabulata)
fossil
Fossilized Shark Tooth
Carcharodon (Galeocerdo sp. or Lamniform)
mineral
Fossil Coral
Scleractinia (Fossilized Coral) / Calcium Carbonate (CaCO3) or Silica (SiO2)
fossil
Petoskey Stone
Hexagonaria percarinata
fossil
Amber
Succinite (organic hydrocarbon)
mineraloid
Amber
Succinite (C10H16O)
Mineraloid
Amber
Succinite (specifically for Baltic amber); Approximate formula: C10H16O
Organic Gemstone (Mineraloid)