Amber
Succinite (fossilized organic resin)
mineral
Category
Mineral (Organic)
Browse mineral (organic) specimens identified by the Rock Identifier community.
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Amber
Succinite (Organic Mineraloid) - C10H16O
mineral
Banded Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Fossiliferous Sedimentary Rock
Sedimentary Rock with Invertebrate Fossil Imprint
fossil
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite (Fool's Gold) Cube
Iron Sulfide (FeS2)
mineral
Pearl (incorporated into jewelry)
Aragonite and Calcite (CaCO3)
mineral
Quartz pebble or seed/crumb
SiO2 (if quartz)
mineral
Amber
Succinicum (Organic Gemstone - Resinite)
mineraloid
Turquoise and Red Coral
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Corallium rubrum (Red Coral)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Shark Tooth Fossil
Carcharhiniformes or Lamniformes (order level fossil)
fossil
Fossilized Shark Tooth
Chondrichthyes (class)
fossil
Limestone (or Sandstone)
Calcium Carbonate (CaCO3) / Silica (SiO2)
sedimentary
Sandstone (with Moss)
Quartz Arenite / Sandstone
sedimentary
Poppy Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions
sedimentary
Fossilized Bone Fragment
Vertebrate Fossil
fossil
Graphite
Graphite (Carbon, C)
mineral
Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite
mineral
Pearl
Calcium carbonate (CaCO3) in the form of Aragonite or Calcite
mineral
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Quartz River Pebble with Algae
Silicon Dioxide (SiO2) with organic biofilm
metamorphic or igneous
Potassium-Rich Silicate Clay (inferred from biological context)
Phyllosilicate group (likely Illite or Smectite within surrounding soil substrate)
mineral
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
Amber in Matrix
Succinite (Carbon-based organic polymer)
Organic (Sedimentary context)
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
mineral
Amber
Succinite (fossilized resin)
Mineral
Amber
Succinite (fossilized tree resin)
Organic Mineraloid
Tree Agate (also known as Dendritic Agate)
Silicon Dioxide with inclusions (SiO2 + Mn/Fe)
mineral
Chert Concretion
Microcrystalline Quartz (SiO2) in Carbonate Matrix
sedimentary
Fossil tooth
Mineralized vertebrate tooth; exact animal and species cannot be determined from the image
fossil
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Organic Materia (Not a rock or mineral)
Fossil Shark Tooth
Chondrichthyes (Class)
fossil
Moss Agate
Chalcedony (SiO2) with inclusions of hornblende or chlorite
mineral
Shale with Iron Staining
Fissile Mudrock (Sedimentary Rock)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Amber
Succinite
mineral
Likely bituminous coal
Coal, predominantly carbon-rich organic matter; exact rank cannot be confirmed visually
sedimentary
Plume Agate
Cryptocrystalline Quartz (SiO2)
Mineral/Gemstone