Organic Specimen (Fossil)

Fossiliferous Limestone (Shell Fragment)

Biogenic Limestone (Calcium Carbonate / CaCO3)

Fossiliferous Limestone (Gritstone/Marl)

CaCO3 (Calcium Carbonate) with Fossil Inclusions

Megalodon Shark Tooth (Partial Fossil)

Otodus megalodon (fossilized in Calcium Phosphate/Apatite)

Sand Tiger Shark Tooth (Fossil)

Carcharias taurus (fossilized dentin/enameloid)

Fossil-bearing sedimentary rock, possibly fossil wood or bone

Indeterminate silicified/carbonate fossil in sandstone or mudstone

Petrified Wood

Silicified Wood (primarily SiO2)

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood

Silicified Wood (primarily SiO2)

Fossil bone fragment, likely vertebrate limb or rib bone

Fossilized bone (apatite-rich hydroxyapatite, Ca₅(PO₄)₃OH); exact taxon indeterminate

Fossilized bivalve shell

Calcitic or aragonitic mollusk shell, commonly Bivalvia; exact species indeterminate

Fossil bivalve shell

Likely an extinct or modern-like ribbed cockle/scallop; exact genus requires locality and diagnostic hinge features

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Concretion (likely iron-rich sandstone or claystone concretion)

Diagenetic carbonate/iron-oxide concretion; exact mineralogy requires testing

Shark Tooth Fossil

Vertebrate fossilized tooth

Dinosaur Claw Fossil

Fossilized Theropod Claw (Vertebrate Palaeontological Specimen)

Shark Tooth Fossil

Elasmobranchii dentition (fossilized)

Petrified Bone Pebble

Silicified Fossilized Bone

Petrified Wood

Fossilized Wood (silicified wood)

Chert Pebble (with fossil shell fragment)

Microcrystalline Quartz (SiO2) with Calcified Invertebrate Impression

Fossilized leaf or plant impression in shale

Carbonized/impressed plant fossil, likely in fine-grained shale or mudstone; exact taxon indeterminate from the image

Iron-stained fossiliferous rock, possibly fossil wood

Likely silicified/petrified wood in iron-rich silica matrix; exact identification requires microscopy

Polished petrified wood

Silicified wood; predominantly microcrystalline quartz (SiO₂), often chalcedony

Shale with Coprolite influence

Argillaceous sedimentary rock (Shale/Mudstone)

Agatized Fossil (Druzy Agate)

Silicon Dioxide (SiO2) replacing organic matter

Limestone (containing Fossil Mold)

Sedimentary Calcium Carbonate (CaCO3)

Chert / Flint (with Crinoid Stem Molds)

Microcrystalline Quartz (SiO2)

Fossilized tooth fragment, possibly a mammalian tooth

Indeterminate fossil tooth; enamel and dentine, taxon not identifiable from this fragment

Orbicular granite (likely Rapakivi-type granite)

Granite, chiefly quartz, alkali feldspar, plagioclase, and biotite/hornblende

Fossiliferous Limestone

Bioclastic Limestone (composition: CaCO3)

Sandstone (with potential fossil inclusions)

Clastic sedimentary rock (primarily SiO2)

Fossilized Shark Tooth

Otodus sp. (approximate genus) / Hydroxyapatite fossil

Dinosaur Fossil (Skull)

Dinosauria fossilis (Petrified Hydroxyapatite / Calcium Carbonate)

Pink shell fragment

Calcium carbonate, likely aragonite or calcite (CaCO₃); probably a bivalve or gastropod shell fragment

Polished petrified wood

Silicified wood; primarily microcrystalline quartz (SiO₂) replacing woody tissue

Fossiliferous Limestone with Coral Imprint

Fossiliferous Limestone (CaCO3)

Fossil gastropod shell

Fossilized marine gastropod; exact genus/species requires locality and examination

Fossiliferous Limestone

Limestone (CaCO3 - Calcium Carbonate)

Fossiliferous limestone

Bioclastic carbonate rock, predominantly calcite (CaCO₃)

Petrified Wood

Silicified Wood (primarily SiO2)

Weathered chert or silicified limestone

Microcrystalline quartz (SiO₂), likely chert formed by silicification of carbonate rock

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with fossil inclusions

Fossilized Bone

Vertebrate Fossil Fragment (Calcium Phosphate / Hydroxyapatite)