Baltic Amber
Succinite (Fossilized Resin)
fossil
Category
Organic Material
Browse organic material specimens identified by the Rock Identifier community.
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Shark Tooth Fossil
Vertebrate fossilized tooth (various genera such as Carcharodon, Otodus, or Negaprion)
fossil
Petrified Wood
Silicified Wood (Permineralized wood)
fossil
Amber
Succinite (fossilized resin, C10H16O)
mineral
Tumbled amber (likely)
Amber; fossilized plant resin, commonly succinite (organic material rather than a mineral)
gemstone
Flint (chert), likely brown flint
Microcrystalline quartz/chalcedony (SiO₂)
sedimentary
Amber
Succinite (fossilized resin)
mineral
Petrified wood (polished/cut slab)
Silicified fossil wood, commonly quartz/chalcedony (SiO₂) replacing wood tissue
fossil
Fossiliferous Limestone / Petrifaction
Sedimentary rock with fossil inclusions / Calcium Carbonate (CaCO3)
fossil
Jasper
Silicon dioxide (SiO2)
sedimentary
Shark Tooth Fossil
Chondrichthyes tooth
fossil
Likely amber (fossil resin), with pieces of pale raw amber
Amber; fossilized plant resin, an amorphous organic material rather than a mineral species
fossil
Fossilized Shark Tooth
Selachimorpha fossil
fossil
Desert Rose / Ironstone Concretion
Hematite-cemented quartz concretion
sedimentary
Polished plume agate
Chalcedony (microcrystalline SiO₂) with iron-oxide inclusions
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Amber
Succinited (fossilized tree resin)
fossil
Amber
Succinite (fossilized resin)
mineral
Raw Amber / Resin Mineral
Succinite (Fossilized Tree Resin)
gemstone
Shark Tooth Fossil Matrix
Carcharocles / Otodus species embedded in sedimentary matrix
fossil
Fossilized Shark Tooth
Chondrichthyes tooth fossil
fossil
Fossilized Bone in Matrix
Vertebrata fossil
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Polished chalcedony (likely moss/ag ate)
Microcrystalline quartz, SiO₂; probable moss agate or jasper variety
mineral
Rounded limestone or dolostone pebble
Calcite-rich limestone (CaCO₃), possibly dolostone (CaMg(CO₃)₂)
sedimentary
Gastropod Fossil (Snail Steinkern)
Class Gastropoda (internal mold)
sedimentary
Petrified Wood
Silicified wood (Quartz/Chalcedony/Opal replacing organic matter)
sedimentary
Dalmatian jasper (often sold as Dalmatian stone)
Quartz-bearing leucocratic alkali-feldspar–aegirine/arfvedsonite porphyritic rock; commercial “jasper” designation
igneous
Petrified Wood
Silicified wood (SiO2)
sedimentary
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Shark Tooth Fossil
Fossilized Chondrichthyes Tooth
fossil
Shark Tooth Fossil
Chondrichthyes tooth fossil
fossil
Petrified Wood
Silicified wood (SiO2)
fossil
Limestone and Quartz Gravel with Petrified Wood
Sedimentary gravel aggregate and fossilized wood
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Fossil Shark Tooth
Chondrichthyes (Class)
fossil
Jasper
Silicon dioxide (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Fossilized Turtle Bone
Testudines fossil
fossil
Possible petrified wood or fossilized tooth
Unidentified silicified fossil; exact identification requires close examination
fossil