Brachiopod Fossil
Phylum Brachiopoda (likely Order Rhynchonellida or Spiriferida)
sedimentary
Category
Sedimentary (Fossilized)
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Fossil Shark Tooth (embedded in matrix)
Lamniformes (likely Cretalamna or Squalicorax) within phosphatic/calcareous matrix
sedimentary
Amber
Succinite (approximate formula C10H16O)
mineral
Fossil Shark Tooth
Otodus sp. or Carcharocles sp. (likely fossilized Chondrichthyes)
fossil
Fulgurite
Fulgurite (Lechatelierite-rich variety)
metamorphic
Amber
Succinicum (Formula: C10H16O)
Mineraloid
Fossilized Fish Skeleton in Matrix
Vertebrata (Class: Actinopterygii), typically found in limestone or shale matrices
sedimentary
Amber
Fossilized Tree Resin (Succinite)
mineraloid
Fossil Shark Tooth
Odontaspididae (Sand Tiger Shark family)
fossil
Echinoid Fossil (Fossilized Sea Urchin)
Echinoidea
fossil
Amber
Succinite (Fossilized Tree Resin)
gemstone
Petrified Wood
Silicified Wood (SiO2)
fossil
Brachiopod Fossil
Phylum Brachiopoda
fossil
Turritella Agate / Fossiliferous Limestone
Elimia tenera in Chalcedony/Calcite Matrix
fossil
Amber
Succinate (Succinite for Baltic varieties)
mineraloid
Coral Fossil (Favosites)
Favosites (Calcite/Calcium Carbonate, CaCO3)
sedimentary
Fossil Coral (Petoskey Stone / Rugose Coral)
Hexagonaria percarinata (Order: Rugosa, Fossilized Calcium Carbonate CaCO3)
sedimentary
Tabulate Coral Fossil (Favosites)
Favosites (Commonly known as Honeycomb Coral)
sedimentary
Shark Tooth Fossil
Carcharhiniformes or Lamniformes (order level fossil)
fossil
Bivalve Fossil
Bivalvia (Phylum Mollusca)
Fossil
Gastropod shell fragment
Calcareous mollusk shell; primarily aragonite or calcite (CaCO₃)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Knightia Fossil in Limestone
Knightia eocaena in micritic limestone
sedimentary
Fossil Sand Dollar (Echinoidea)
Phylum Echinodermata, Class Echinoidea (likely Dendraster or Scutella)
sedimentary
Honeycomb Coral Fossil
Favosites (extinct genus of tabulate coral)
sedimentary
Polished septarian nodule
Calcite–aragonite cemented carbonate concretion, commonly with clay minerals and iron oxides
sedimentary
Megalodon Shark Tooth (Partial Fossil)
Otodus megalodon (fossilized in Calcium Phosphate/Apatite)
Mineral/Fossil
Brachiopod Fossil in Matrix
Phylum Brachiopoda
fossil
Fossil Coral (Rugose Coral Fragment)
Rugosa (extinct order of solitary and colonial corals)
sedimentary
Fulgurite
Lechatelierite
mineral
Vesicular Basalt (or Rhyolite)
Extrusive Igneous Rock with Vesicular Texture
igneous
Petoskey Stone
Hexagonaria percarinata
fossil
Crinoid Marble (Fossilized Limestone)
Crinoidal Limestone (comprising Calcite/Aragonite CaCO3)
sedimentary
Amber with Fossil Inclusion
Fossilized Tree Resin (Succinite)
fossil
Script Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Fossilized Plant or Tree Bark
Lepidodendron or Sigillaria (example genera)
sedimentary
Brachiopod Fossil in Chert
Phylum Brachiopoda within Microcrystalline Quartz (SiO2)
sedimentary
Amber
Amber (C10H16O)
mineral
Chert (Chert Nodule with Cortex)
Microcrystalline Quartz (SiO2)
sedimentary
Fossil Shark Tooth
Carcharocles (Otodus) sp. or similar fossilized Chondrichthyes tooth
sedimentary
Amber
Succinite (specifically for Baltic amber); approximate formula C10H16O
organic mineraloid
Fossil Coral (Rugose Coral / Horn Coral fragment)
Rugosa (Tetracoralla) / Calcite (CaCO3)
fossil