Organic Specimen (Fossil)

Fossilized Crinoid Stem in Pebble

Crinoidea (Class) preserved in calcite/matrix

Fossil Shark Tooth

Carcharhiniformes fossil (likely Carcharhinidae family)

Belemnoit Fossil (Sea Squid Fossil)

Belemnitida (Order within Cephalopoda)

Limestone Cobble

Sedimentary Calcium Carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Petrified Wood

Silicified Wood (SiO2)

Dyed Coral

Calcium carbonate (CaCO3) - Calcite or Aragonite with dye

Chert Nodule

Microcrystalline Quartz (SiO2)

Crinoid Fossil in Limestone

Class Crinoidea in Carbonate Matrix (CaCO3)

Crinoid Stem Fossil

Class Crinoidea (Echinodermata)

Likely tumbled jasper or chert specimens

Microcrystalline quartz (SiO₂), commonly jasper/chert; exact identification is uncertain from the photograph

Fossil shark teeth

Likely fossilized shark teeth, possibly Carcharhiniformes or related sharks; exact species cannot be determined from the photo.

Fossil shark teeth

Probably fossilized shark teeth, possibly *Otodus* or *Carcharhinus* species

Crinoid Stem Fossil

Class Crinoidea (Echinodermata)

Limestone

Calcium Carbonate (CaCO3)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone (Red/Brown Variety)

Arenite (SiO2 with iron oxide impurities)

Limestone

Calcium Carbonate (CaCO3)

Fossil Coral

Rugose Coral / Hexagonaria (CaCO3)

Limestone

Calcite rock (CaCO3)

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)

Sandstone

Arenite (SiO2 based with various mineral cements)

Graphite-veined Quartzite

Meta-sedimentary Quartzite with Carbonaceous/Graphitic Inclusions (SiO2 + C)

Fossil Shark Teeth (likely Sand Tiger Shark)

Carcharias taurus (fossilized dentition)

Sandstone (with potential Concretion or Fossil fragment)

Arenite (primarily SiO2)

Limestone

Calcium Carbonate (CaCO3)

Coral Fossil / Coral Fragment

Scleractinia / Calcium Carbonate (CaCO3)

Fossiliferous Chert Nodule

SiO2 (Microcrystalline Quartz) with fossil inclusions

Fossilized Brachiopod

Phylum Brachiopoda

Sandstone

Arenite (composed primarily of SiO2)

Horn Coral Fossil

Rugosa (Order Rugosa)

Sandstone (Ferruginous)

Arenite (Fe-rich)

Concretion

Sedimentary Concretion

Soft Limestone

Calcite-rich Sedimentary Rock (CaCO3)

Shale

Shale (Argillaceous sedimentary rock)

Sandstone/Quartzite

Sedimentary Rock (composed mainly of SiO2)

Chert (Field Stone)

Microcrystalline Quartz (SiO2)

Ferruginous Sandstone

Sandstone with iron oxide (Hematite/Limonite) cement

Limestone (with Iron-Oxide staining)

Sedimentary Calcium Carbonate (CaCO3)

Chert (Vuggy or Fossilliferous)

Microcrystalline Quartz (SiO2)

Quartzite Cobble

Quartzite (SiO2)

Cockle Shell Fossil

Cardiidae family (Bivalvia)