Amber / Copal
Organic resin, C10H16O
mineral
Category
Sedimentary (Fossilized)
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Amber (Copal)
Succinite (fossilized tree resin)
mineral
Orthoceras Fossil in Limestone
Orthoceras (extinct genus of cephalopods) in Carboniferous or Devonian Limestone
sedimentary
Jet
Lignite (Anthracite-grade compact coal)
sedimentary
Oyster shell fragment
Ostreidae shell; primarily calcite (CaCO₃)
fossil
Amber
Succinite (Fossilized Tree Resin, C10H16O)
gemstone
Amber (Cherry Amber)
Succinite (C10H16O)
Organic Gemstone
Baltic Amber
Succinite (Polmerized conifer resin)
mineraloid
Fossilized Gastropod Shell
Gastropoda (Class) replacement / internal cast (steinkern)
fossil
Fossilized Shark Tooth
Elasmobranchii (Class) fossil
fossil
Picture Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Biggs Jasper (Picture Jasper)
Silicon Dioxide (SiO2) - Opaque Silicified Volcanic Ash
sedimentary
Petoskey Stone
Hexagonaria percarinata
sedimentary
Fossilized Shell in Limestone
Carbonate sedimentary rock with Bivalvia or Brachiopoda remains
fossil
Mookaite Jasper
Radiolarite (Silica with iron oxides like Goethite and Hematite)
sedimentary
Mookaite Jasper
Silicon Dioxide (SiO2) - variety of Chert/Jasper
sedimentary
Fossilized Rugose Coral (Horn Coral)
Order Rugosa
sedimentary
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Fossilized Shark Tooth
Carcharocles sp. (likely Lemon or Sand Tiger)
sedimentary
Fossil Snail Shell (Embedded in Resin)
Gastropoda fossil
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
fossil
Ironstone Concretion (Coprolite-like)
Goethite/Hematite Siderite Spheroid (FeCO3 or FeO(OH))
sedimentary
Fossil Shark Tooth
Carcharodon or Carcharias fossil (Vertebrate Fossil)
sedimentary
Fossilized Bone Fragment
Permineralized Skeletal Element (Likely Vertebrate)
sedimentary
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Lepidodendron Fossil (Scale Tree)
Lepidodendron
fossil
Amber
Succinates (C10H16O)
mineraloid
Coal (Anthracite / Bituminous)
Organic Sedimentary Rock (Carbon-based)
sedimentary
Fossilized Bone Chunk
Permineralized Vertebrate Bone (indeterminant)
fossil
Fossilized Shark Tooth
Eocene Lamniformes (Mackerel Shark clade)
fossil
Amber
Succinite
Mineraloid
Fossilized Tabulate Coral
Favosites (Honeycomb Coral)
fossil
Dinosaur Fossil (Tyrannosaurus rex skull replica/specimen)
Tyrannosaurus rex (fossilized in permineralized sedimentary matrix)
sedimentary
Augite Shell / Turret Snail Fossil (or Recent Seashell)
Gastropoda (Class) / Turritellidae (Family)
fossil
Fossilized Fish (Lepidotes)
Lepidotes sp. (Order: Lepisosteiformes)
sedimentary
Fossilized Horse Tooth
Equus ferus caballus (fossilized molar/premolar)
fossil
Amber
Succinite (amorphous organic polymer)
mineral
Fossil Shell (Bivalve)
Phylum Mollusca, Class Bivalvia (typically composed of Calcium Carbonate / CaCO3)
sedimentary
Seashell Fossil
Mollusca (Bivalvia)
fossil
Likely tumbled amber or orange chalcedony
Uncertain from image; possibly amber (fossilized resin, chiefly C10H16O) or carnelian (microcrystalline quartz, SiO₂)
gemstone
Amber
Succinite
Organic Gemstone (sedimentary associations)
Petoskey Stone (Fossilized Rugose Coral)
Hexagonaria percarinata (Calcium Carbonate, CaCO3)
sedimentary