Rock Identifier

Category

Metamorphic Rock

Browse metamorphic rock specimens identified by the Rock Identifier community.

Learn about Metamorphic Rock in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Eulysite

Eulysite

Metabasalt

Metabasalt

Hornfels

Hornfels

Metarhyolite

Metarhyolite

Metagabbro

Metagabbro

Talc-carbonate Rock

Talc-carbonate Rock

Rock Gypsum

Rock Gypsum

Rock Salt

Rock Salt

Coral Rock

Coral Rock

Asphalt Rock

Asphalt Rock

Amphibolite

Amphibolite

Green Quartzite (or Green Jasper) (Silica (Silicon Dioxide, SiO2) with inclusions) — metamorphic

Green Quartzite (or Green Jasper)

Silica (Silicon Dioxide, SiO2) with inclusions

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Magnetite Orthorthotropic Rock (Magnetite (Fe3O4)) — mineral

Magnetite Orthorthotropic Rock

Magnetite (Fe3O4)

Eclogite (Eclogite (comprising Omphacite and Garnet)) — metamorphic

Eclogite

Eclogite (comprising Omphacite and Garnet)

Quartzite with Iron Staining (Quartzite (primarily SiO2 with Fe2O3 staining)) — metamorphic

Quartzite with Iron Staining

Quartzite (primarily SiO2 with Fe2O3 staining)

Quartzite (Iron-stained) (Quartzite (SiO2 with Fe-oxides)) — metamorphic

Quartzite (Iron-stained)

Quartzite (SiO2 with Fe-oxides)

Epidote (Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Quartz (Silicon dioxide (SiO2)) — Mineral

Quartz

Silicon dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Schist (Crystalline Schist (often containing Muscovite, Biotte, or Quartz)) — metamorphic

Schist

Crystalline Schist (often containing Muscovite, Biotte, or Quartz)

Mica Schist (Muscovite/Biotite Schist) — metamorphic

Mica Schist

Muscovite/Biotite Schist

Serpentinite (Serpentinite (composed mainly of Group: Serpentine; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed mainly of Group: Serpentine; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Serpentinite (Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)) — metamorphic

Serpentinite

Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)

Ruby in Zoisite (Anyolite) (Corundum var. Ruby in Zoisite (Al2O3 + (Ca2Al3(SiO4)3(OH)))) — metamorphic

Ruby in Zoisite (Anyolite)

Corundum var. Ruby in Zoisite (Al2O3 + (Ca2Al3(SiO4)3(OH)))

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

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

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn)2-3(Si, Al, Fe)2O5(OH)4

Quartzite (Quartzite (mainly SiO2)) — metamorphic

Quartzite

Quartzite (mainly SiO2)

Quartzite (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite

Quartzite (SiO2 silicon dioxide)

Yellow Quartzite Pebble (Quartzite (primarily Silicon Dioxide - SiO2)) — metamorphic

Yellow Quartzite Pebble

Quartzite (primarily Silicon Dioxide - SiO2)

Quartzite River Stone (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Stone

Quartzite (primarily SiO2)

Greenstone / Greenschist (Greenschist (composed of chlorite, epidote, and actinolite)) — metamorphic

Greenstone / Greenschist

Greenschist (composed of chlorite, epidote, and actinolite)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Unakite (Epidotized Granite) (Epidote-Feldspar-Quartz Rock) — metamorphic

Unakite (Epidotized Granite)

Epidote-Feldspar-Quartz Rock

Serpentine (variety: Serpentine Rock) (Antigorite, Lizardite, or Chrysotile; formula generally (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentine (variety: Serpentine Rock)

Antigorite, Lizardite, or Chrysotile; formula generally (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Quartzite (Quartzite (chiefly SiO2)) — metamorphic

Quartzite

Quartzite (chiefly SiO2)

Quartzite (River Stone) (Quartzite (predominantly SiO2)) — metamorphic

Quartzite (River Stone)

Quartzite (predominantly SiO2)

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

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

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Unakite (Tumbled) (Epidotized Granite) — metamorphic

Unakite (Tumbled)

Epidotized Granite

Quartzite (with Quartz Veining) (Quartzite (SiO2)) — metamorphic

Quartzite (with Quartz Veining)

Quartzite (SiO2)

Limonitic Quartzite (Metamorphosed sandstone with Limonite (FeO(OH)·nH2O) staining) — metamorphic

Limonitic Quartzite

Metamorphosed sandstone with Limonite (FeO(OH)·nH2O) staining

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Granitic Gneiss (Felsic Polycrystalline Gneiss) — metamorphic

Granitic Gneiss

Felsic Polycrystalline Gneiss

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

Quartz (Milky/Smoky variety)

Silicon Dioxide (SiO2)

Quartzite River Rock (Quartzite (Silicon Dioxide, SiO2)) — metamorphic

Quartzite River Rock

Quartzite (Silicon Dioxide, SiO2)

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

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Yellow Quartzite (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite

Quartzite (primarily SiO2)

Quartzite Pebble (Beach Stone) (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble (Beach Stone)

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)