Sedimentary (Fossilized Organic Matter)

Quartz Geode

Silicon Dioxide (SiO2) in a concretionary structure

Fossil Shark Tooth (embedded in matrix)

Lamniformes (likely Cretalamna or Squalicorax) within phosphatic/calcareous matrix

Shale (possibly)

Shale (fine-grained clastic sedimentary rock)

Coral Fossil (Favosites)

Favosites (Calcite/Calcium Carbonate, CaCO3)

Fossil Coral (Petoskey Stone / Rugose Coral)

Hexagonaria percarinata (Order: Rugosa, Fossilized Calcium Carbonate CaCO3)

Crinoid Marble (Fossilized Limestone)

Crinoidal Limestone (comprising Calcite/Aragonite CaCO3)

Mookaite Jasper

Radiolarite (Silica-rich sedimentary rock featuring Hematite and Goethite)

Fossilized Echinoid (Sea Urchin)

Echinoidea (Class), often found as calcitic fossils

Sandstone

Sandstone (various mineral compositions)

Fossil Sand Dollar (Echinoidea)

Phylum Echinodermata, Class Echinoidea (likely Dendraster or Scutella)

Pyrite

Pyrite (Iron sulfide, FeS₂)

Fossilized Shark Tooth in Matrix

Otodus sp. (likely Otodus obliquus)

Fossilized Sea Urchin (Echinoid)

Echinoidea (Fossil specimen, often replaced by Calcite or Silica)

Anthracite Coal

Coal (predominantly carbon)

Milky Quartz with Dendritic Inclusions

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

Fossilized Angel Wing Shell

Cyrtopleura costata

Fossilized Brachiopod Shell in Matrix

Phylum Brachiopoda (typically Calcium Carbonate or Chitinophosphatic)

Fossilized Favosites (Honeycomb Coral)

Favosites (Genus), Phylum Cnidaria, Class Anthozoa

Conglomerate with Fossilized Shark Teeth

Clastic sedimentary rock (Conglomerate) containing Elasmobranchii remains

Coquina or Fossilized Shell Aggregate

Calcareous bioclastic sedimentary rock (CaCO3)

Ammonite Fossil

Ammonoidea (subclass)

Favosites (Honeycomb Coral Fossil)

Favosites (Genus of extinct tabulate coral)

Fulgurite

Fulgurite (Lechatelierite), amorphous SiO2

Honeycomb Coral Fossil (Petoskey-type Coral)

Favosites (Extinct Colonial Tabulate Coral), CaCO3

Brachiopod Fossil (Spiriferid)

Order Spiriferida (Phylum Brachiopoda); mineralized as Calcite (CaCO3) or Chert (SiO2)

Fossiliferous Sandstone (with Brachiopod or Bivalve mold)

Clastic Sedimentary Rock with Macrofossil Mold

Quartzite Cobble

Quartzite (SiO2)

Fossilized Coral (Petoskey Stone / Favosites)

Favosites (extinct genus of tabulate coral)

Gastropod Steinkern (Fossilized Snail Cast)

Phylum Mollusca, Class Gastropoda (Commonly CaCO3 or SiO2 after replacement)

Fossilized Favosites (Honeycomb Coral)

Favosites (extinct genus of tabulate coral)

Fossilized Gastropod in Chert/Limestone

Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula

Fossilized Solitary Rugose Coral

Order Rugosa (commonly Horn Coral)

Fossilized Stingray Mouth Plate

Myliobatidae dental battery

Fossilized Coral (Honeycomb Coral)

Favosites (extinct genus of tabulate corals), CaCO3 (Calcium Carbonate)

Crinaudite / Fossilized Crinoid Stem

Crinoid (Echinodermata) in a Calcitic/Siliceous Matrix

Sandstone with trace fossil

Sandstone, possibly with Skolithos or similar trace fossil

Amber

Succinite (C10H16O)

Fossilized Shark Tooth (Cretaceous to Neogene)

Elasmobranchii dental fossil (likely Squalicorax or similar species)

Slate

Slate (a fine-grained, foliated metamorphic rock). Mineral composition: Primarily composed of mica minerals (muscovite, chlorite, sericite) and quartz, with minor amounts of hematite, pyrite, and other accessory minerals.

Chondrite Meteorite

Ordinary Chondrite (S-type Asteroid fragment)

Fossiliferous Chert (Gryphaea Fossil)

Silicon Dioxide (SiO2) with Calcitic Mollusk Remnants

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)