Fossilized Bone
Permineralized Vertebrate Bone
fossil
Category
Organic Mineraloid And Mineral
Browse organic mineraloid and mineral specimens identified by the Rock Identifier community.
Learn about Organic Mineraloid And Mineral in the encyclopedia
View all →
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
sedimentary
Moss Agate
Silicon Dioxide (Chalcedony variety) with green hornblende or chlorite inclusions - SiO2
gemstone
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
mineral
Amber
Succinite (fossilized resin)
Mineral
Tree Agate (also known as Dendritic Agate)
Silicon Dioxide with inclusions (SiO2 + Mn/Fe)
mineral
Fossil tooth
Mineralized vertebrate tooth; exact animal and species cannot be determined from the image
fossil
Fossil Shark Tooth
Chondrichthyes (Class)
fossil
Moss Agate
Chalcedony (SiO2) with inclusions of hornblende or chlorite
mineral
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Amber
Succinite (Approximate formula: C10H16O)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Likely bituminous coal
Coal, predominantly carbon-rich organic matter; exact rank cannot be confirmed visually
sedimentary
Plume Agate
Cryptocrystalline Quartz (SiO2)
Mineral/Gemstone
Amber
Succinate (Fossilized Tree Resin)
gemstone
Amber / Fossilized Resin
Succinite / Fossilized Tree Resin
mineral
Shark Tooth Fossil
Vertebrate fossilized tooth
fossil
Amber
Succinite
mineral
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Pearl
Nacre (Aragonite and Conchiolin), CaCO3
mineral
Amber with dark mineral/organic inclusions
Fossilized plant resin (amber; chiefly polymerized diterpenoid resin)
gemstone
Sandstone
Arenite (SiO2 composed primarily of quartz)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Dinosaur Claw Fossil
Fossilized Theropod Claw (Vertebrate Palaeontological Specimen)
fossil
Jasper
Chalcedony (SiO2)
mineral
Fossilized Shark Tooth (Megalodon or Carcharocles species fragment)
Otodus megalodon / Carcharocles spp. (Apatite / Calcium Phosphate)
fossil
Chert Concretion
Microcrystalline Quartz (SiO2) in Carbonate Matrix
sedimentary
Polished operculum (“Shiva eye” shell)
Calcium-carbonate shell operculum, commonly from a turban snail (family Turbinidae); not a mineral specimen
fossil
Shale or Slate
Shale (Sedimentary) or Slate (Metamorphic)
sedimentary or metamorphic
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Fossilized Shark Tooth (Partial) or Coprolite
Elasmobranchii (fossil) or Coprolite (trace fossil)
fossil
Coprolite
Fossilized Feces
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Fossilized Nut / Coprolite / Concretion
Trace Fossil / Permineralized Plant Material
fossil
Amber (possibly rough amber)
Fossilized tree resin; chemically a complex organic mixture, commonly classified as succinite when Baltic in origin
gemstone
Amber
Succiniferous fossil resin (C10H16O)
gemstone
Amber
Succinite (Fossilized Tree Resin)
fossil
Tumbled moss agate
Chalcedony (microcrystalline quartz, SiO₂) with moss-like inclusions
mineral
Amber
Fossilized Tree Resin
gemstone