Rock Identifier

Category

Mineral (Synthetic Paper And Ink Polymorph)

Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.

Learn about Mineral (Synthetic Paper And Ink Polymorph) in the encyclopedia

Kokchetavite

Paracelsian

Anatase

Brookite

Aragonite

London Blue Topaz

London Blue Topaz

Zincite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Opalite

Lead Feldspar

Sperrylite

Glauconite

Chalk (Calcium Carbonate (CaCO3)) — sedimentary

Chalk

Calcium Carbonate (CaCO3)

Fossil Coral (Petoskey Stone / Favosites / Charlevoix Stone) (Hexagonaria percarinata / Favosites (Cnidaria)) — fossil

Fossil Coral (Petoskey Stone / Favosites / Charlevoix Stone)

Hexagonaria percarinata / Favosites (Cnidaria)

Banded Iron Formation / Chert with Quartz Veining (Banded Iron Formation (BIF) / Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Iron Formation / Chert with Quartz Veining

Banded Iron Formation (BIF) / Cryptocrystalline Quartz (SiO2)

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — fossil

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Limestone with Fossil Inclusions (Sedimentary Carbonate Rock (CaCO3)) — sedimentary

Limestone with Fossil Inclusions

Sedimentary Carbonate Rock (CaCO3)

Opal (in Jewelry Setting) (Hydrated Silicon Dioxide (SiO2·nH2O)) — gemstone

Opal (in Jewelry Setting)

Hydrated Silicon Dioxide (SiO2·nH2O)

Bituminous Coal (Organic-rich sedimentary rock (Complex hydrocarbons)) — sedimentary

Bituminous Coal

Organic-rich sedimentary rock (Complex hydrocarbons)

Coal (Anthracite/Bituminous) (Carbo fossilium (primarily Carbon)) — sedimentary

Coal (Anthracite/Bituminous)

Carbo fossilium (primarily Carbon)

Opalite (Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)) — mineraloid

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

Pumice (Vesicular Rhyolite/Andesite) (Pumice (a highly vesicular volcanic glass/extrusive igneous rock)) — igneous

Pumice (Vesicular Rhyolite/Andesite)

Pumice (a highly vesicular volcanic glass/extrusive igneous rock)

Diamond (or Cut Gemstone / Cubic Zirconia) (Carbon (C)) — gemstone

Diamond (or Cut Gemstone / Cubic Zirconia)

Carbon (C)

Diamond (Faceted) (Diamond (Pure Carbon, C)) — gemstone

Diamond (Faceted)

Diamond (Pure Carbon, C)

Blue sapphire ring (Corundum, aluminum oxide (Al₂O₃), blue variety colored mainly by iron and titanium) — gemstone

Blue sapphire ring

Corundum, aluminum oxide (Al₂O₃), blue variety colored mainly by iron and titanium

Synthetic Faux Fur Fursuit (Polyacrylonitrile / Polyester (Synthetic Textile)) — not a rock (synthetic material/costume)

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

not a rock (synthetic material/costume)

Limestone (Limestone (CaCO3)) — sedimentary

Limestone

Limestone (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Anthracite Coal (Anthracite (Carbon ≥ 86%)) — sedimentary

Anthracite Coal

Anthracite (Carbon ≥ 86%)

Limestone (Calcium carbonate (CaCO3)) — sedimentary

Limestone

Calcium carbonate (CaCO3)

Diamond (or Diamond Simulant) (Carbon (C) or Cubic Zirconia (ZrO2)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Colorless faceted gemstone (likely cubic zirconia) (Cubic zirconia, ZrO₂ (synthetic zirconium dioxide); possibly synthetic glass or lab-grown diamond) — gemstone

Colorless faceted gemstone (likely cubic zirconia)

Cubic zirconia, ZrO₂ (synthetic zirconium dioxide); possibly synthetic glass or lab-grown diamond

Petoskey Stone (Fossilized Rugose Coral) (Hexagonaria percarinata) — fossil

Petoskey Stone (Fossilized Rugose Coral)

Hexagonaria percarinata

Quartzite River Cobble (Quartzite (dominated by SiO2)) — metamorphic

Quartzite River Cobble

Quartzite (dominated by SiO2)

Limestone (Calcareous sedimentary rock (CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (CaCO3)

Limestone (Sedimentary Rock (Primarily Calcite: CaCO3)) — sedimentary

Limestone

Sedimentary Rock (Primarily Calcite: CaCO3)

Porphyritic Diabase (Porphyry) (Porphyritic Diabase / Microgabbro) — igneous

Porphyritic Diabase (Porphyry)

Porphyritic Diabase / Microgabbro

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Puddingstone (Conglomerate) (Conglomerate (clastic sedimentary rock)) — sedimentary

Puddingstone (Conglomerate)

Conglomerate (clastic sedimentary rock)

Colorless faceted gemstone, likely cubic zirconia (Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable) — gemstone

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable

Graphite-rich schist (probable graphite ore) (Graphite schist; chiefly graphitic carbon (C) with quartz, mica, and possibly feldspar) — metamorphic

Graphite-rich schist (probable graphite ore)

Graphite schist; chiefly graphitic carbon (C) with quartz, mica, and possibly feldspar

Limestone with Calcite Crystals (Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Calcite Crystals

Calcium Carbonate (CaCO3)

Green cabochon gemstone, likely aventurine or dyed chalcedony (Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony) — gemstone

Green cabochon gemstone, likely aventurine or dyed chalcedony

Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony

Diamond (Diamond (C)) — gemstone

Diamond

Diamond (C)

Blue-beaded gemstone jewelry, likely lapis lazuli or dyed blue agate (Uncertain from the image; possible lazurite-bearing lapis lazuli (Na₃Ca(Si₃Al₃)O₁₂S) or blue chalcedony (SiO₂)) — gemstone

Blue-beaded gemstone jewelry, likely lapis lazuli or dyed blue agate

Uncertain from the image; possible lazurite-bearing lapis lazuli (Na₃Ca(Si₃Al₃)O₁₂S) or blue chalcedony (SiO₂)

Lapis Lazuli (in Matrix) (Na8[Al6Si6O24]S2 (Lazurite as the primary component)) — metamorphic

Lapis Lazuli (in Matrix)

Na8[Al6Si6O24]S2 (Lazurite as the primary component)

Opalite (Synthetic Glass (Simulated Moonstone/Opal)) — gemstone

Opalite

Synthetic Glass (Simulated Moonstone/Opal)

Rounded river cobble, likely weathered sandstone or quartz-rich metasandstone (Indeterminate sandstone; commonly quartz (SiO₂) with feldspar, lithic grains, and iron-oxide cement) — sedimentary

Rounded river cobble, likely weathered sandstone or quartz-rich metasandstone

Indeterminate sandstone; commonly quartz (SiO₂) with feldspar, lithic grains, and iron-oxide cement

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Petoskey Stone (Hexagonaria percarinata) — fossil

Petoskey Stone

Hexagonaria percarinata

Rounded granitic cobble (Granite or granitic gneiss; primarily quartz, feldspar, and mica) — igneous

Rounded granitic cobble

Granite or granitic gneiss; primarily quartz, feldspar, and mica