Rock Identifier

Category

Anthropogenic (Man Made Product Subject To Geological Processes)

Browse anthropogenic (man made product subject to geological processes) specimens identified by the Rock Identifier community.

Eclogite (Eclogite (Omphacite + Pyrope)) — metamorphic

Eclogite

Eclogite (Omphacite + Pyrope)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Limonite-stained Granite (Felsic Plutonic Rock with Hydrated Iron Oxides) — igneous

Limonite-stained Granite

Felsic Plutonic Rock with Hydrated Iron Oxides

Chalcopyrite (Chalcopyrite (CuFeS2)) — mineral

Chalcopyrite

Chalcopyrite (CuFeS2)

Bull Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Bull Quartz

Quartz (Silicon Dioxide - SiO2)

Limestone (Calcareous sedimentary rock (primarily Calcium Carbonate, CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (primarily Calcium Carbonate, CaCO3)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartz Vein with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Quartz Vein with Iron Staining

Silicon Dioxide (SiO2)

Quartz Pebble (often referred to as 'Sea Glass' or 'River Stone' when worn smooth) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (often referred to as 'Sea Glass' or 'River Stone' when worn smooth)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Red Jasper (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Bull Quartz (White Quartz) (Silicon Dioxide (SiO2)) — mineral

Bull Quartz (White Quartz)

Silicon Dioxide (SiO2)

Carnelian (Carnelian (variety of Chalcedony, SiO2)) — mineral

Carnelian

Carnelian (variety of Chalcedony, SiO2)

Green Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (with iron oxide staining) (Silicon Dioxide (SiO2)) — mineral

Quartz (with iron oxide staining)

Silicon Dioxide (SiO2)

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Rhodonite (Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3

Lapis Lazuli (Lapis lazuli (primary component: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli

Lapis lazuli (primary component: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Fossil Coral (Cnidaria Anthozoa (Fossilized)) — sedimentary

Fossil Coral

Cnidaria Anthozoa (Fossilized)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Banded Iron Formation (Jasper-Hematite) (Banded Iron Formation (BIF); composition primarily Hematite (Fe2O3) and Chalcedony/Quartz (SiO2)) — sedimentary

Banded Iron Formation (Jasper-Hematite)

Banded Iron Formation (BIF); composition primarily Hematite (Fe2O3) and Chalcedony/Quartz (SiO2)

Smoky Quartz (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (Tumbled)

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Smoky variety)

Silicon Dioxide (SiO2)

Milky Quartz (Stained with Iron) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Stained with Iron)

Silicon Dioxide (SiO2)

Chevron Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Chevron Amethyst

Silicon Dioxide (SiO2) with iron impurities

Fluorite (Fluorite (Calcium Fluoride, CaF2)) — Mineral

Fluorite

Fluorite (Calcium Fluoride, CaF2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Dyed Magnesite (often sold as Red Turquoise or Howlite) (Magnesium Carbonate (MgCO3)) — mineral

Dyed Magnesite (often sold as Red Turquoise or Howlite)

Magnesium Carbonate (MgCO3)

Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Garnet

Almandine (Fe3Al2(SiO4)3)

Chert (or Flint) (Chert (a cryptocrystalline variety of quartz, SiO2)) — sedimentary

Chert (or Flint)

Chert (a cryptocrystalline variety of quartz, SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Granite Gneiss (Gneiss (derived from granitic protolith)) — metamorphic

Granite Gneiss

Gneiss (derived from granitic protolith)

Quartz (Clear Quartz/Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Green Aventurine (Aventurine (Silicon dioxide, SiO₂)) — Mineral; variety of Quartz

Green Aventurine

Aventurine (Silicon dioxide, SiO₂)

Mineral; variety of Quartz

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

Diamond in Kimberlite (Kimberlite Matrix with Carbon (Diamond)) — igneous

Diamond in Kimberlite

Kimberlite Matrix with Carbon (Diamond)

Prehnite (Ca2Al(AlSi3O10)(OH)2 (Calcium Aluminum Silicate hydroxide)) — mineral

Prehnite

Ca2Al(AlSi3O10)(OH)2 (Calcium Aluminum Silicate hydroxide)