Fossil Coral (Pleurodictyum)
Pleurodictyum sp. (Order Tabulata)
sedimentary
Category
Fossil
Browse fossil specimens identified by the Rock Identifier community.
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Slate
Slate
metamorphic
Amber
Succinates (C10H16O)
mineraloid
Sandstone
Arenite (specifically Iron-stained Quartz Sandstone)
sedimentary
Amber
Succinite (Organic Gemstone)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (C10H16O)
mineral
Amber in Matrix
Succinite (Carbon-based organic polymer)
Organic (Sedimentary context)
Chert Pebble (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Amber
Succinite (C10H16O)
mineraloid
Fossiliferous Limestone (Shell Fragment)
Biogenic Limestone (Calcium Carbonate / CaCO3)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone with trace fossil
Sandstone, possibly with Skolithos or similar trace fossil
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossiliferous Shale Matrix
Clastic Sedimentary Rock with Brachiopod or Mollusk shell fragments
sedimentary
Amber
Succinite
Organic mineraloid
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Handaxe with Inlaid Fossil Echinoid
Flint / Chert (SiO2) containing a fossil Conulus albogalerus
sedimentary (cryptocrystalline silica)
Dendritic Agate (Tree Agate)
Chalcedony (Silicon Dioxide, SiO2) with Manganese or Iron Oxide inclusions
mineral
Petrified Wood
Silicified Wood (SiO2 - Silicon Dioxide)
sedimentary
Petrified Wood
Silicified wood (primarily SiO2)
metamorphic
Calamites (Fossilized Horsetail)
Calamites suckowii (Family: Calamitaceae)
sedimentary
Chert Pebble with Inclusion
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Limestone
Calcite (CaCO3) Rich Bio-sedimentary Rock
sedimentary
Manganese Oxide Crust on Limestone
Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3
sedimentary
Coquina / Fossiliferous Limestone
Calcite-rich Bioclastic Sedimentary Rock (CaCO3)
sedimentary
Ironstone (Limonite/Hematite concretion)
Ferruginous Siltstone / Goethite (FeO(OH))
sedimentary
Fossilized Oyster (Devil's Toenail)
Gryphaea (extinct genus of bivalve mollusks)
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossil Coral (Favosites Honeycomb)
Favosites (Genus), Phylum Cnidaria, Class Anthozoa
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Fossilized Coral (Honeycomb Coral)
Favosites (extinct genus of tabulate corals), CaCO3 (Calcium Carbonate)
sedimentary
Slate
Foliated Metamorphic Rock (primarily composed of Muscovite, Chlorite, and Quartz)
metamorphic
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Chert (specifically Yellow/Brown Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Chert / Flint)
Silicon Dioxide (SiO2)
sedimentary