Petoskey Stone
Hexagonaria percarinata (Fossilized Coral)
Category
Browse sedimentary (fossilized) specimens identified by the Rock Identifier community.
Petoskey Stone
Hexagonaria percarinata (Fossilized Coral)
Dendritic Siltstone
Siltstone with Manganese Dendrites (MnO2)
Petrified Wood
Petrified Wood (Silicified Wood)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Fossilized Coral (Petoskey Stone or similar)
Hexagonaria percarinata (Order: Rugosa)
Pyrite
Iron Sulfide (FeS2)
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
Fossiliferous Kalkstein (Marl/Sandstone)
Fossiliferous calcarenite/siltstone
Fossilized Shark Tooth (Sand Tiger)
Carcharias sp. (Fossilized Tooth)
Amber with inclusion
Amber (Fossilized Tree Resin)
Amber
Succinite (Fossilized Resin C10H16O)
Favosites (Honeycomb Coral Fossil)
Favosites sp. (Phylum Cnidaria, Order Tabulata)
Sandstone
Arenite (SiO2 predominantly)
Sandstone (Quartzose)
Sandstone (SiO2 dominated)
Oyster Shell (Aragonite/Calcite)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based)
Fossiliferous Limestone (Coral Fossil)
Calcium Carbonate (CaCO3) with Colonial Coral inclusions
Crinoid Fossil in Chert
Crinoid (Class Crinoidea) in Microcrystalline Quartz (SiO2)
Sandstone
Arenite (SiO2 based)
Fossiliferous Limestone (with Crinoids)
CaCO3 (Calcium Carbonate)
Sandstone
Sedimentary Rock (Quartz arenite)
Sandstone
Arenite (SiO2 based)
Fossilized Shark Tooth
Chondrichthyes (class) fossilized tooth
Quartz Vein in Pelite (Metamorphic Rock)
Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)
Chalcedony in Matrix (likely Agatized Coral or Chert)
Silicon Dioxide (SiO2)
Chert (specifically Flint or Dark Chert)
Chert (SiO2)
Petoskey Stone
Hexagonaria percarinata
Petrified Wood
Fossilized wood / Silicified wood
Fossiliferous Shale
Fossiliferous Mudstone / Shale
Bituminous Coal
Coal (Sedimentary Rock)
Fossilized Oyster in Flint
Gryphaea or Exogyra embedded in SiO2 (Flint/Chert)
Chert Cobble with Crinoid Fossil
Silica (SiO2) with Crinoid ossicle
Fossilized Rugose Coral (Petoskey Stone type)
Hexagonaria percarinata (Order: Rugosa)
Fossiliferous Limestone with Crinoid stems
Limestone (CaCO3) containing Crinoidea fossils
Fossil Shark Tooth
Chondrichthyes tooth fossil
Amber
Succinite (fossilized resin); C10H16O
Fossilized Shark Tooth
Chondrichthyes (Class) fossilized tooth
Chert (Jasper variation)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Petrified Wood
Silicified Wood (SiO2)
Flower Jasper
Agatized Fossil Coral / Chalcedony (SiO2)
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)