Amber
Succinite
Organic Mineraloid
Category
Organic (Biological Specimen)
Browse organic (biological specimen) specimens identified by the Rock Identifier community.
Amber
Succinate (Fossilized Tree Resin)
mineraloid
Amber
Succinite (specific to Baltic amber), fossilized tree resin
mineraloid
Pyrite
Iron Sulfide (FeS2)
mineral
Shark Tooth Fossil
Otodus obliquus (or similar prehistoric lamniform shark tooth)
fossil
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Fossiliferous limestone, possibly coral or stromatoporoid fossil
Calcitic limestone; predominantly CaCO₃, with fossilized colonial-organism structures
fossil
Fossiliferous Limestone
Limestone (Calcium Carbonate, CaCO3)
sedimentary
Chert (with Quartz/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinite (with a generalized formula of C10H16O)
mineral
Amber
Succinite (specifically for Baltic amber); Chemical formula approximately C10H16O
mineral
Ironstone Nodules (Iron Concretion)
Siderite or Hematite Concretion
sedimentary
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with Biogenic Fossils
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Banded Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Banded Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
sedimentary
Shungite
Fullerene-bearing carbonaceous rock
mineral
Amber
Succinite (a fossilized organic resin containing succinic acid)
mineraloid
Weathered fossiliferous limestone or fossil fragment
Indeterminate bioclastic carbonate rock; likely calcite (CaCO₃) with fossil shell material
fossil
Fossil bivalve shell
Likely an extinct or modern-like ribbed cockle/scallop; exact genus requires locality and diagnostic hinge features
fossil
Amber
Succinite (C10H16O)
mineraloid
Crinoid and Coral Fossils in Limestone
Fossiliferous Limestone with Rugosa (order) and Crinoidea (class)
sedimentary
Fossilized Shark Tooth
Chondrichthyes (Class) fossilized tooth
fossil
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
mineral
Fossilized shell fragment
Indeterminate fossil mollusk; likely a silicified or mineral-replaced bivalve/gastropod fragment
fossil
Amber
Succinite (Fossilized Tree Resin)
Organic Mineraloid
Botryoidal calcite (likely calcite concretion)
Calcite, calcium carbonate (CaCO₃)
mineral
Amber (Rough)
Succinite (Resinite)
gemstone
Chert (Chalcedony-rich sedimentary rock)
Cryptocrystalline Quartz (SiO2)
sedimentary
Pyrite (on host rock/ore)
Iron Sulfide (FeS2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Calcite (Yellow/Orange variety - sometimes called Honey Calcite)
Calcite
Mineral
Amber
Succinite (Fossilized Tree Resin) - C10H16O
mineral
Green Calcite
Calcite (CaCO3)
mineral
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Fossiliferous Sandstone (with Brachiopod or Bivalve mold)
Clastic Sedimentary Rock with Macrofossil Mold
sedimentary
Amber
Succinite (fossilized resin)
mineral
Shell Cameo
Cypraecassis rufa (Bullmouth Queen Helmet Shell)
mineraloid / biogenic specimen
Pyrite
Iron Disulfide (FeS2)
mineral
Amber / Copal
Fossilized Tree Resin (Succinate)
Mineraloid