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

Serpentine (Serpentinite (group of minerals including Antigorite, Lizardite, or Chrysotile) (Mg, Fe)3Si2O5(OH)4) — metamorphic

Serpentine

Serpentinite (group of minerals including Antigorite, Lizardite, or Chrysotile) (Mg, Fe)3Si2O5(OH)4

Serpentinite (Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)) — metamorphic

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)

Clay Brick (Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)) — metamorphic (man-made/anthropogenic)

Clay Brick

Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)

metamorphic (man-made/anthropogenic)

Rough Emerald in Matrix (Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium) — mineral

Rough Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Garnet Schist (Garnetiferous Micaceous Schist) — metamorphic

Garnet Schist

Garnetiferous Micaceous Schist

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Schist (Biotite Schist) (Biotite-bearing Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)) — metamorphic

Schist (Biotite Schist)

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

Serpentinite (Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

White Marble (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble

Recrystallized Calcite (CaCO3)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

Banded Serpentine (Serpentinite (Mg3Si2O5(OH)4)) — metamorphic

Banded Serpentine

Serpentinite (Mg3Si2O5(OH)4)

Unakite (Unakite (altered granitic rock: SiO2 + Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Unakite

Unakite (altered granitic rock: SiO2 + Ca2(Al,Fe)3(SiO4)3(OH))

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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 (Epidotized Granite (Fe, Ca, Al silicate + KAlSi3O8)) — metamorphic

Unakite

Epidotized Granite (Fe, Ca, Al silicate + KAlSi3O8)

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

Serpentine

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

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

Serpentinite

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

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Petrified Wood (Silicified wood (primarily Silicon Dioxide, SiO2)) — metamorphic

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

Quartz with Schist Matrix (Crystalline Silicon Dioxide (SiO2) in micaceous schist) — metamorphic

Quartz with Schist Matrix

Crystalline Silicon Dioxide (SiO2) in micaceous schist

Lapis Lazuli (polished cabochon/sphere) (Na8[Al6Si6O24]Sn with accessory minerals (Pyrite, Calcite)) — metamorphic

Lapis Lazuli (polished cabochon/sphere)

Na8[Al6Si6O24]Sn with accessory minerals (Pyrite, Calcite)

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

Quartz (Smoky/Clear variety)

Silicon Dioxide (SiO2)

Garnet in Host Rock (Garnet Group (A3B2(SiO4)3)) — metamorphic

Garnet in Host Rock

Garnet Group (A3B2(SiO4)3)

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

Quartz (Druzy) on Matrix

Silicon Dioxide (SiO2)

Yellow Aventurine (Silicon Dioxide (Quartz with inclusions), SiO2) — mineral

Yellow Aventurine

Silicon Dioxide (Quartz with inclusions), SiO2

Pink Tourmaline (Rubellite) (Elbaite (Tourmaline group) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) — mineral

Pink Tourmaline (Rubellite)

Elbaite (Tourmaline group) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

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

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

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

Smoky Quartz

Smoky Quartz (SiO2: Silicon Dioxide)

Quartzite River Rock (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite River Rock

Metamorphic Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Serpentinite (Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)) — metamorphic

Serpentinite

Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)

Green Quartzite (River Stone) (Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)) — metamorphic

Green Quartzite (River Stone)

Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

River Cobble (likely Metasedimentary or Basalt) (Metamorphosed Siltstone or Altered Fine-grained Igneous Rock) — metamorphic

River Cobble (likely Metasedimentary or Basalt)

Metamorphosed Siltstone or Altered Fine-grained Igneous Rock

Serpentine (Lizardite) (Serpentine subgroup, Mg3Si2O5(OH)4) — metamorphic

Serpentine (Lizardite)

Serpentine subgroup, Mg3Si2O5(OH)4

Eclogite (Eclogite (Omphacite-Garnet Metamophic Rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet Metamophic Rock)

Marble (Recrystallized Carbonate Rock (CaCO3)) — metamorphic

Marble

Recrystallized Carbonate Rock (CaCO3)

Red Quartzite River Rock (Metamorphic Quartzite (SiO2)) — metamorphic

Red Quartzite River Rock

Metamorphic Quartzite (SiO2)