Fossilized Shark Tooth
Selachimorpha fossil
Category
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
Fossilized Shark Tooth
Selachimorpha fossil
Chert (Green and Black Jasper variant)
Cryptocrystalline Quartz (SiO2)
Limestone with Calcite Veining
Sedimentary Rock (Calcium Carbonate, CaCO3)
Seashell Fossil
Gastropoda fossil
Dendritic jasper/chalcedony
Silica-rich microcrystalline quartz (SiO₂) with manganese-oxide dendrites
Chert (Flint Nodules)
Silicon Dioxide (SiO2)
Chert / River Pebble
Silicon Dioxide (SiO2)
Chert (Arrowhead Point)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
Pyrite (Fool's Gold) in Matrix
Iron Disulfide (FeS2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Shungite
Carbon-rich mineraloid (Amorphous carbon)
Fossilized Shell
Invertebrate fossil (Bivalvia or Brachiopoda)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Concretion or Nodular Variety)
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Silicified Gastropod Fossil (Agatized Fossil)
Gastropoda (Class) preserved in Chalcedony/Quartz (SiO2)
Chert (Jasper/Agate variant)
Microcrystalline Quartz (SiO2)
Blue Apatite
Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))
Jasper
Silicon dioxide (SiO2) with impurities
Chalcedony (Chert/Flint variety)
Silicon Dioxide (SiO2)
Chert (Basanite / Jasperoid)
Microcrystalline Quartz (SiO2)
Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Red Jasper
Silicon Dioxide (SiO2)
Polished amber
Amber (fossilized plant resin; chiefly amorphous organic compounds)
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
Bituminous Coal
Coal (Organically derived sedimentary rock)
Fossilized Tooth Fragment
Vertebrate Fossil (Mammalia indet.)
Chert Concretion
Sedimentary Cryptocrystalline Quartz (SiO2)
Fossil gastropod shell
Fossilized marine gastropod; exact genus/species cannot be determined from the image
Banded Marble (Egg Carving)
Metamorphosed Limestone (predominantly CaCO3)
Sandstone (River Cobble)
Clastic sedimentary rock (primarily SiO2)
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with Organic Inclusions
Chert (Jasper variation)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Fossiliferous Kalkstein (Marl/Sandstone)
Fossiliferous calcarenite/siltstone