Rock Identifier

Category

Igneous And Mineral

Browse igneous and mineral specimens identified by the Rock Identifier community.

Learn about Igneous And Mineral in the encyclopedia

Carbonatite

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

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

Almandine Garnet

Almandine - Fe3Al2(SiO4)3

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Sodalite (Sodalite (Sodium Aluminum Silicate Chloride), Na8(Al6Si6O24)Cl2) — Mineral

Sodalite

Sodalite (Sodium Aluminum Silicate Chloride), Na8(Al6Si6O24)Cl2

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Gold-Bearing Quartz Ore (Crystalline Silicon Dioxide (SiO2) with Trace Aurum (Au)) — mineral

Gold-Bearing Quartz Ore

Crystalline Silicon Dioxide (SiO2) with Trace Aurum (Au)

Pink Granite (Phaneritic Felsic Igneous Rock) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock

Black Obsidian (Volcanic Glass (SiO2 + impurities)) — Igneous

Black Obsidian

Volcanic Glass (SiO2 + impurities)

Pegmatite (Granitic Pegmatite) — igneous

Pegmatite

Granitic Pegmatite

Garnet (Silicate mineral group (often Pyrope or Almandine in this color range)) — gemstone

Garnet

Silicate mineral group (often Pyrope or Almandine in this color range)

Granite (Granite (Phaneritic intrusive igneous rock)) — igneous

Granite

Granite (Phaneritic intrusive igneous rock)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Orthoclase Feldspar (KAlSi3O8 (Potassium aluminum silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium aluminum silicate)

Orbicular Granite (Orbicular Granitoid) — igneous

Orbicular Granite

Orbicular Granitoid

Greenish Metamorphic Rock (likely containing epidote or chlorite) (Metamorphic rock, possibly epidosite or greenstone) — Metamorphic

Greenish Metamorphic Rock (likely containing epidote or chlorite)

Metamorphic rock, possibly epidosite or greenstone

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Obsidian (Volcanic glass (SiO2 + impurities)) — igneous

Obsidian

Volcanic glass (SiO2 + impurities)

Obsidian (Obsidian (Volcanic Glass, SiO2 + impurity)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurity)

Quartz Vein in Rhyolite (Silicon Dioxide (SiO2) in extrusive igneous rock) — igneous

Quartz Vein in Rhyolite

Silicon Dioxide (SiO2) in extrusive igneous rock

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Quartz (Grain) (Silicon Dioxide (SiO2)) — mineral

Quartz (Grain)

Silicon Dioxide (SiO2)

Quartz with Mica (Granitic / Pegmatitic Quartz) (Silicon Dioxide (SiO2) with Mica group minerals) — mineral

Quartz with Mica (Granitic / Pegmatitic Quartz)

Silicon Dioxide (SiO2) with Mica group minerals

River Cobble (Gneiss/Schist mix) (Foliated Metamorphic Rock (Gneissic/Schistose)) — metamorphic

River Cobble (Gneiss/Schist mix)

Foliated Metamorphic Rock (Gneissic/Schistose)

Garnet (Garnet Group (Silicate Minerals), formula varies e.g., Almandine Fe3Al2(SiO4)3) — mineral

Garnet

Garnet Group (Silicate Minerals), formula varies e.g., Almandine Fe3Al2(SiO4)3

Arfvedsonite (Arfvedsonite [Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2]) — mineral

Arfvedsonite

Arfvedsonite [Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2]

Greenstone (River Pebble) (Metabasalt / Greenschist) — metamorphic

Greenstone (River Pebble)

Metabasalt / Greenschist

Milky Quartz with Iron Oxide Weathering (Silicon Dioxide (SiO2) with Goethite/Limonite coatings) — mineral

Milky Quartz with Iron Oxide Weathering

Silicon Dioxide (SiO2) with Goethite/Limonite coatings

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Ferruginous Quartz (Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)

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

Amethyst

Silicon Dioxide with trace Iron (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained or Ferruginous) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained or Ferruginous)

Silicon Dioxide (SiO2)

Amethyst (Quartz (Silicon Dioxide with iron impurities), SiO2) — mineral

Amethyst

Quartz (Silicon Dioxide with iron impurities), SiO2

Quartz (Gravel Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

Quartz (Milky or Cloudy Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Quartz Geode / Druzy Quartz Node (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode / Druzy Quartz Node

Silicon Dioxide (SiO2)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Silicon dioxide with iron impurities (SiO2)) — mineral

Amethyst

Silicon dioxide with iron impurities (SiO2)

Sunstone (Feldspar) (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Sunstone (Feldspar)

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8