Rock Identifier

Category

Not A Natural Rock (Man Made Composite)

Browse not a natural rock (man made composite) specimens identified by the Rock Identifier community.

Quartzite (Quartzite (Mainly SiO2)) — metamorphic

Quartzite

Quartzite (Mainly SiO2)

Dendritic Agate (Chalcedony (SiO2) with manganese/iron oxide inclusions) — mineral

Dendritic Agate

Chalcedony (SiO2) with manganese/iron oxide inclusions

Limestone (specifically Fossiliferous Limestone) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (specifically Fossiliferous Limestone)

Calcium Carbonate (CaCO3)

Blue Celestite (Celestine) Cluster (Strontium sulfate (SrSO4)) — mineral

Blue Celestite (Celestine) Cluster

Strontium sulfate (SrSO4)

Coquina (Coquina (Biogenic Limestone / CaCO3)) — sedimentary

Coquina

Coquina (Biogenic Limestone / CaCO3)

Moss Agate (Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide

Anthropogenic Heat Source (Electronic/Industrial Interface) (Thermal IR emission (Electronic infrastructure)) — not a rock or mineral

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

not a rock or mineral

Plastic Building Toy (Lego-style piece) (Acrylonitrile Butadiene Styrene (ABS)) — not a rock/mineral

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

not a rock/mineral

Diamond (in jewelry mount) (Carbon (C)) — mineral

Diamond (in jewelry mount)

Carbon (C)

Quartz Druze (Silicon Dioxide (SiO2)) — mineral

Quartz Druze

Silicon Dioxide (SiO2)

Moss Agate Geode Sphere (Silicon Dioxide (SiO2) - Chalcedony with Chlorite or Manganese inclusions) — mineral

Moss Agate Geode Sphere

Silicon Dioxide (SiO2) - Chalcedony with Chlorite or Manganese inclusions

Green Banded Chert (Agate/Jasper) (Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite) — sedimentary

Green Banded Chert (Agate/Jasper)

Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite

Amethyst (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Diamond (appearing in jewelry) (Diamond (pure Carbon, C)) — mineral

Diamond (appearing in jewelry)

Diamond (pure Carbon, C)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Quartzite (specifically an iron-stained or Carnelian-colored variety) (Silicon Dioxide (SiO2) with iron oxide inclusions) — metamorphic

Quartzite (specifically an iron-stained or Carnelian-colored variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Kyanite (within Quartz) (Kyanite (Al2SiO5) in crystalline Quartz base (SiO2)) — metamorphic

Kyanite (within Quartz)

Kyanite (Al2SiO5) in crystalline Quartz base (SiO2)

Jasper (likely Ocean Jasper or Variegated Jasper) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (likely Ocean Jasper or Variegated Jasper)

Silicon Dioxide (SiO2) with impurities

Dyed Chalcedony (Agate) (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Chalcedony (Agate)

Silicon Dioxide (SiO2) with artificial pigment

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Limonite (Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)

Limonite (vibrant yellowish-brown iron oxide) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (vibrant yellowish-brown iron oxide)

Limonite (FeO(OH)·nH2O)

Peacock Ore (Bornite/Chalcopyrite) (Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite/Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Clear Quartz (Double Terminated) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Double Terminated)

Silicon Dioxide (SiO2)

Diamond (Diamond (pure Carbon, C)) — mineral

Diamond

Diamond (pure Carbon, C)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Chrysocolla in Matrix (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Silicate/Secondary Copper Mineral)) — mineral

Chrysocolla in Matrix

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Silicate/Secondary Copper Mineral)

Ferruginous Sandstone (Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)) — sedimentary

Ferruginous Sandstone

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Basalt (Basalt (Volcanic Mafic Rock)) — igneous

Basalt

Basalt (Volcanic Mafic Rock)

Schist (Schist (various mineralogical compositions including mica, chlorite, talc, etc.)) — Metamorphic

Schist

Schist (various mineralogical compositions including mica, chlorite, talc, etc.)

Lapis Lazuli (Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2) — metamorphic

Lapis Lazuli

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Sandstone (Ferruginous) (Arenite (Fe-rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (Fe-rich)

Limestone (Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Limestone

Limestone (Calcium Carbonate - CaCO3)

Sandstone (lithic/greywacke variety) (Arenite (composed primarily of SiO2 with various lithic fragments)) — sedimentary

Sandstone (lithic/greywacke variety)

Arenite (composed primarily of SiO2 with various lithic fragments)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Crushed Limestone (Gravel) (Calcium Carbonate (CaCO3)) — sedimentary

Crushed Limestone (Gravel)

Calcium Carbonate (CaCO3)