Fossilized Bone
Permineralized Vertebrate Bone
fossil
Category
Mineral (Silicate Replaced Organic Material)
Browse mineral (silicate replaced organic material) specimens identified by the Rock Identifier community.
Learn about Mineral (Silicate Replaced Organic Material) in the encyclopedia
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Fossilized Shark Tooth (Otodus)
Otodus obliquus
fossil
Petrified Wood
Silicified Wood (SiO2)
mineral
Petrified Wood
Silicified wood (primarily SiO2 - Silicon Dioxide/Quartz)
metamorphic
Petrified Wood
Silicified Wood (mainly Quartz / SiO2)
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
mineral
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)
mineral
Shark Tooth Fossil
Carcharocles megalodon or similar extinct shark tooth
fossil
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Fossilized Tooth
Vertebrate Fossilized Tooth (Mineralized Biogenic Material)
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Shark Tooth Fossil
Carcharhiniformes or Lamniformes (order level fossil)
fossil
Fossil Shark Tooth
Selachii fossil
fossil
Chert / Jasper / Agate (Chalcedony Group)
Microcrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Chert Concretion (Flint)
Silicon Dioxide (SiO2)
sedimentary
Petrified Wood
Silicified wood (Quartz/Chalcedony - SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
mineral
Chalcedony (Agatized Coral / Rough Chalcedony Node)
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
mineral
Fossil Shark Tooth
Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite
fossil
Fossiliferous Limestone / Petrifaction
Sedimentary rock with fossil inclusions / Calcium Carbonate (CaCO3)
fossil
Fossil Shark Tooth
Carcharodon sp. (likely Otodus or similar Lamniformes order)
sedimentary
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
fossil
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Petrified Dinosaur Bone (Gembone)
Agatized Dinosaur Bone
sedimentary
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Jasper
Silicon dioxide (Quartz variety), SiO2
sedimentary
Petrified Wood
Silicified wood / Permineralized wood (SiO2)
fossil
Jasper
Silicon dioxide (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Shark Tooth Fossil
Vertebrate fossilized tooth
fossil
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Nephrite Jade
Nephrite
Mineral/Rock