Rock Identifier

Category

Igneous And Metamorphic

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

Learn about Igneous And Metamorphic in the encyclopedia

Carbonatite

Cordierite Hornfels

Cordierite Hornfels

Metabasalt

Eulysite

Migmatite

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Metagabbro

Calcite (Calcite (Calcium Carbonate - CaCO3)) — mineral

Calcite

Calcite (Calcium Carbonate - CaCO3)

Quartz (Silicon dioxide (SiO2)) — Mineral

Quartz

Silicon dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Orthoclase Feldspar (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Biotite on Quartz (Biotite Mica (K(Mg,Fe)3AlSi3O10(F,OH)2)) — mineral

Biotite on Quartz

Biotite Mica (K(Mg,Fe)3AlSi3O10(F,OH)2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite in Matrix (likely Quartz or Schist matrix) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (likely Quartz or Schist matrix)

Iron Sulfide (FeS2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Milky Quartz with Garnet/Hematite and Basalt (Silicon Dioxide (SiO2) with Almandine (Fe3Al2Si3O12) and Basalt) — mineral

Milky Quartz with Garnet/Hematite and Basalt

Silicon Dioxide (SiO2) with Almandine (Fe3Al2Si3O12) and Basalt

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Specular Hematite (Specularite (Iron(III) oxide, Fe2O3)) — mineral

Specular Hematite

Specularite (Iron(III) oxide, Fe2O3)

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

Quartz (Clear / Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Apatite (Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Apatite

Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))

Moonstone (Orthoclase Feldspar ((K,Na)AlSi3O8)) — mineral

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8)

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Blue Apatite (Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Blue Sapphire (Corundum (Al2O3 with trace amounts of iron and titanium)) — mineral

Blue Sapphire

Corundum (Al2O3 with trace amounts of iron and titanium)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Quartz Crystal Fragment (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Crystal Fragment

Quartz (Silicon Dioxide, SiO2)

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Corundum (Ruby Variety) (Corundum (Al2O3)) — mineral

Corundum (Ruby Variety)

Corundum (Al2O3)

Hypersthene (Hypersthene (Enstatite variety), (Mg,Fe)SiO3) — Mineral

Hypersthene

Hypersthene (Enstatite variety), (Mg,Fe)SiO3

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Rough Quartz (likely Rose or Smoky variant) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (likely Rose or Smoky variant)

Silicon Dioxide (SiO2)

Labradorite (Labradorite (Plagioclase Feldspar Series - (Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Labradorite (Plagioclase Feldspar Series - (Ca, Na)(Al, Si)4O8)

White Zircon (Zircon (Zirconium silicate, ZrSiO4)) — mineral

White Zircon

Zircon (Zirconium silicate, ZrSiO4)

Yellow Agate (Agate (Varietal form of Chalcedony/Quartz, SiO2)) — mineral

Yellow Agate

Agate (Varietal form of Chalcedony/Quartz, SiO2)

Quartz Vein / Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky or Citrine-tinted) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Citrine-tinted)

Silicon Dioxide (SiO2)

Blue Apatite (Apatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Apatite (Ca5(PO4)3(F,Cl,OH))

Peach Moonstone Sphere (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Peach Moonstone Sphere

Potassium Aluminum Silicate (KAlSi3O8)

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

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Quartz (Milky or Clear fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Clear fragment)

Silicon Dioxide (SiO2)