Rock Identifier

Category

Igneous, Sedimentary, And Metamorphic

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

Learn about Igneous, Sedimentary, And Metamorphic in the encyclopedia

Cordierite Hornfels

Cordierite Hornfels

Migmatite

Hornblende Schist

Hornblende Schist

Goldmanite

Feruvite

Andesine

Andesite

Andalusite

Andamooka Opal

Andradite Garnet

Andradite Garnet

Andesine-Labradorite

Andesine-Labradorite

Carbonatite

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Labradorite ((Na,Ca)(Al,Si)4O8) — mineral

Labradorite

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

Serpentine (Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)) — metamorphic

Serpentine

Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)

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

Quartz (Milky Quartz / Quartz Specimen)

Silicon Dioxide (SiO2)

Quartz Crystal (Citrine / Golden Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal (Citrine / Golden Quartz)

Silicon Dioxide (SiO2)

Serpentine (Serpentinite) (Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)) — metamorphic

Serpentine (Serpentinite)

Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)

Green Tourmaline (Verdelite) / Actinolite (Tourmaline group: Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4 / Actinolite: Ca2(Mg,Fe)5Si8O22(OH)2) — mineral

Green Tourmaline (Verdelite) / Actinolite

Tourmaline group: Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4 / Actinolite: Ca2(Mg,Fe)5Si8O22(OH)2

Sodalite (Sodalite (Na8Al6Si6O24Cl2)) — mineral

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

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

Biotite on Matrix

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

Strawberry Quartz (Quartz with Hematite inclusions) (Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)) — mineral

Strawberry Quartz (Quartz with Hematite inclusions)

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)

Dearest Ring (Gemstones) (Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)) — mineral

Dearest Ring (Gemstones)

Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)

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

Garnet

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

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

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Almandine Garnet (Fe3Al2(SiO4)3) — gemstone

Almandine Garnet

Fe3Al2(SiO4)3

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

Muscovite Mica

KAl2(AlSi3O10)(OH)2

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

Muscovite Mica

Muscovite [KAl2(AlSi3O10)(OH)2]

Ruby in Zoisite (Anyolite (composite of Corundum and Zoisite)) — metamorphic

Ruby in Zoisite

Anyolite (composite of Corundum and Zoisite)

Garnet (Almandine/Pyrope series) (Garnet Group - X3Y2(SiO4)3) — mineral

Garnet (Almandine/Pyrope series)

Garnet Group - X3Y2(SiO4)3

Corundum (Sapphire/Ruby in Matrix) (Aluminium oxide (Al2O3)) — mineral

Corundum (Sapphire/Ruby in Matrix)

Aluminium oxide (Al2O3)

Gneiss (specifically a Banded Gneiss pebble) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (specifically a Banded Gneiss pebble)

Gneiss (High-grade Regional Metamorphic Rock)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Banded River Cobble with Mafic Dike (Hydrothermally altered Graywacke or Sandstone with Mafic Intrusion) — igneous and sedimentary

Banded River Cobble with Mafic Dike

Hydrothermally altered Graywacke or Sandstone with Mafic Intrusion

igneous and sedimentary

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

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Lapis Lazuli ((Na,Ca)8(Al,Si)12O24(S,SO4)(Cl)2) — mineral

Lapis Lazuli

(Na,Ca)8(Al,Si)12O24(S,SO4)(Cl)2

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

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

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

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Ruby (varieties of Corundum) (Aluminum oxide (Al2O3) with Chromium traces) — mineral

Ruby (varieties of Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Migmatite (Migmatite (Mixed Rock)) — metamorphic

Migmatite

Migmatite (Mixed Rock)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz with Iron Stains (Quartz (SiO2) with iron oxide/hydroxide staining) — Mineral

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Crystalline Quartz (SiO2)) — mineral

Milky Quartz

Crystalline Quartz (SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)