Shungite
Shungite (Non-crystalline carbon, C)
mineral
Category
Sedimentary (Fossilized Organic Matter)
Browse sedimentary (fossilized organic matter) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Fossilized Organic Matter) in the encyclopedia
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Fossilized Dinosaur Bone
Perineralized Bone (Fluorapatite/Quartz replacement)
fossil
Moss Agate
Chalcedony (SiO2 with inclusions)
mineral
Dinosaur Claw Fossil
Fossilized Theropod Claw (Vertebrate Palaeontological Specimen)
fossil
Fossilized Rugose Coral in Limestone
Order Rugosa in Sedimentary Matrix (CaCO3)
fossil
Amber
Succinite (Fossilized Resin)
gemstone
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Iron-stained quartz-rich rock, possibly jasper or chert
Microcrystalline quartz (SiO₂) with iron oxides/hydroxides
mineral
Black Marble (Veined Limestone/Marble)
Recrystallized Limestone / Metamorphic Calcite (CaCO3)
metamorphic
Fluorite
Fluorite (CaF2)
mineral
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)
mineral
Agate (Moss or Dendritic Agate)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Fossilized turtle shell fragment
Testudines indeterminate; shell bone permineralized with silica/carbonate minerals
fossil
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossilized Shark Tooth (likely Sand Tiger Shark)
Carcharias taurus (fossilized hydroxyapatite/calcium phosphate)
fossil
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Zebra Marble
Metamorphosed Alabaster/Limestone (CaCO3)
metamorphic
Amber
Succinite (Fossilized Resin C10H16O)
Organic Mineraloid
Fossil Shark Tooth
Carcharodon or Carcharias fossil (Vertebrate Fossil)
sedimentary
Palm Wood Fossil
Palmoxylon
fossil
Amber
Succinite (fossilized resin)
mineral
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Petrified Bone Pebble
Silicified Fossilized Bone
fossil
Amber
Succinite (a fossilized organic resin containing succinic acid)
mineraloid
Polished fossiliferous limestone
Bioclastic limestone, commonly crinoidal or shell-rich micrite
sedimentary
Amber
Succinates (Fossilized Tree Resin)
mineraloid
Fossil bivalve shell
Fossilized marine bivalve; exact genus/species indeterminate from the photograph
fossil
Chert / Flint
Cryptocrystalline quartz (SiO2)
sedimentary
Chert (variant Flint/Jasper)
Microcrystalline Opaline Silica (SiO2)
sedimentary
Amber
Succinite (fossilized resin)
mineral
Jasper
Agate/Jasper (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Iron-Stained)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Fossilized Shark Tooth
Chondrichthyes tooth
fossil
Ferruginous Sandstone (Ironstone)
Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)
sedimentary
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Dragon Stone
Ohko Stone (Argillaceous sedimentary rock)
sedimentary
Amber (Copal)
Succinate (Fossilized Resin)
mineraloid
Chert / Flint (with Crinoid Stem Molds)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized tooth, likely a mammalian tooth fragment
Indeterminate fossil tooth; possibly an ungulate or carnivoran tooth
fossil
Petrified Wood / Red Jasper
Silicified wood (primarily Silicon Dioxide, SiO2)
sedimentary
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Mineraloid
Anthracite Coal
Anthracite
metamorphic