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

Schist (Lepidoblastic Mica Schist) — metamorphic

Schist

Lepidoblastic Mica Schist

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Granite Gneiss (Gneiss (derived from granitic protolith)) — metamorphic

Granite Gneiss

Gneiss (derived from granitic protolith)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite River Rock (with Quartz Vein) (Quartzite (SiO2)) — metamorphic

Quartzite River Rock (with Quartz Vein)

Quartzite (SiO2)

Quartzite with Schist Inclusions (Metamorphosed Quartzite (SiO2) with minor mica/chlorite schist) — metamorphic

Quartzite with Schist Inclusions

Metamorphosed Quartzite (SiO2) with minor mica/chlorite schist

Emerald in Matrix (Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Greenschist (Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)) — metamorphic

Greenschist

Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)

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

Greenstone

Greenschist (composed of actinolite, chlorite, and epidote)

Epidote with Feldspar/Quartz (Unakite-like) (Epidotized Granite (Ca2(Al,Fe)3(SiO4)3(OH) + KAlSi3O8)) — metamorphic

Epidote with Feldspar/Quartz (Unakite-like)

Epidotized Granite (Ca2(Al,Fe)3(SiO4)3(OH) + KAlSi3O8)

Unidentifiable Specimen (Undetermined) — Unknown

Unidentifiable Specimen

Undetermined

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Auriferous Quartz or Pyritic Ore (Iron Pyrite (FeS2) or Native Gold (Au) in Matrix) — mineral

Auriferous Quartz or Pyritic Ore

Iron Pyrite (FeS2) or Native Gold (Au) in Matrix

Mica Schist with Quartz (Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist with Quartz

Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (composed primarily of Silica, SiO2)) — metamorphic

Quartzite

Quartzite (composed primarily of Silica, SiO2)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Red Quartzite (likely Purple/Red variety) (Quartzite (SiO2)) — metamorphic

Red Quartzite (likely Purple/Red variety)

Quartzite (SiO2)

River Pebble (Likely Quartzite or Gneiss) (Metamorphosed Silicate Rock (primarily SiO2)) — metamorphic

River Pebble (Likely Quartzite or Gneiss)

Metamorphosed Silicate Rock (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Red Quartzite (Quartzite (primarily SiO2 with hematite impurities)) — metamorphic

Red Quartzite

Quartzite (primarily SiO2 with hematite impurities)

Quartzite (Pink/Red variety) (Quartzite (SiO2 with iron oxide impurities)) — metamorphic

Quartzite (Pink/Red variety)

Quartzite (SiO2 with iron oxide impurities)

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Quartzite pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite pebble

Quartzite (primarily SiO2)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Quartzite with Feldspar (Quartzite (mainly SiO2) with inclusions of Potassium Feldspar (KAlSi3O8)) — metamorphic

Quartzite with Feldspar

Quartzite (mainly SiO2) with inclusions of Potassium Feldspar (KAlSi3O8)

Green Quartzite (Aventurine-like) (Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)) — metamorphic

Green Quartzite (Aventurine-like)

Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)

Red Quartzite (Quartzite (primarily SiO2)) — metamorphic

Red Quartzite

Quartzite (primarily SiO2)

Granite Gneiss (Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)) — metamorphic

Granite Gneiss

Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)

Lapis Lazuli (Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])) — metamorphic

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Mica Schist (Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist

Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)

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

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)