Organic Material (Likely A Fruit Or Berry)

Jasper

Silicon dioxide (SiO2)

Fossilized Shark Tooth

Chondrichthyes tooth

Shark Tooth Fossil

Chondrichthyes tooth

Brachiopod Fossil in Limestone

Phylum Brachiopoda (likely Order Spiriferida), CaCO3 (Calcite)

Fossilized Shark Tooth

Selachimorpha fossil

Petrified Wood

Silicified Wood (SiO2)

Tumbled black stone, likely black agate or onyx

Microcrystalline quartz (SiO₂), probably chalcedony/black agate; exact identification requires testing

Banded sandstone pebble

Lithified quartz–feldspar sandstone, likely ferruginous and carbonaceous laminae

Bituminous coal (likely)

Coal, primarily carbon with macerals and variable mineral matter; commonly represented by approximate composition C-rich organic material

Tumbled fossiliferous limestone

Micritic limestone, likely bioclastic/fossiliferous carbonate rock (predominantly CaCO₃)

Honey calcite (orange calcite)

Calcite, calcium carbonate (CaCO₃)

Calcite

Calcite (calcium carbonate, CaCO₃), likely massive or crystalline limestone-derived material

Limestone

Calcium Carbonate (CaCO3)

Petrified Wood

Silicified Wood (primarily SiO2)

Polished moss agate (likely dendritic agate)

Chalcedony, microcrystalline quartz (SiO₂), with inclusions of manganese/iron oxides or hornblende

Graphite-rich schist (likely graphite ore)

Graphite-bearing schist; predominantly graphitic carbon (C) with mica, quartz, and possible feldspar

Chert (Nodule)

Silicon Dioxide (SiO2)

Polished amber-like chalcedony/jasper

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony or jasper; amber cannot be confirmed visually

Asphalt aggregate

Human-made bituminous asphalt containing crushed silicate rock aggregate

Banded Chert / Flint

Microcrystalline Quartz (SiO2)

Fossilized leaf or plant impression in shale

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

Fossilized Shark Tooth

Carcharocles or Otodus sp. (Micro-fossilized)

Mother of Pearl (Nacre)

Aragonite (CaCO3) with Organic Matrix

Petrified Wood

Silicified wood (primarily Silicon Dioxide - SiO2)

Fossilized Bone

Petrified Bone / Biogenic Sedimentary

Shark Tooth Fossil Matrix

Carcharocles / Otodus species embedded in sedimentary matrix

Fossilized ammonite fragment

Ammonoidea; likely an ammonite suture-section specimen, commonly Jurassic–Cretaceous

Orbicular granite (likely Rapakivi-type granite)

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

Petrified Wood

Silicified wood (SiO2)

Petrified Wood

Silicified wood (SiO2)

Shark Tooth Fossil

Chondrichthyes dentition

Petrified Wood

Silicified wood (SiO2)

Shark Tooth Fossil

Chondrichthyes tooth fossil

Petrified Wood

Silicified wood (primarily quartz, SiO2)

Fossilized Shark Tooth

Chondrichthyes tooth fossil

Fossilized Bone in Matrix

Vertebrata fossil

Fossilized Bone

Vertebrate Fossil (Biogenic sediment)

Jasper

Cryptocrystalline quartz, SiO2

Fossilized Bone

Fossilized vertebrate bone

Petrified Wood

Petrified Wood (Silicified Wood)

Polished amber-colored stone, possibly chert or jasper

Uncertain from image; likely microcrystalline quartz (SiO₂) if chert/jasper

Petrified Wood

Silicified Wood (SiO2)