Rock Identifier

Category

Metamorphic (Low Grade)

Browse metamorphic (low grade) specimens identified by the Rock Identifier community.

Learn about Metamorphic (Low Grade) in the encyclopedia

Greenschist

Slate

Granulite

Chlorite Schist

Chlorite Schist

Greenstone

Gneiss

Schist

Amphibolite

Garnet Schist

Migmatite

Biotite Schist

Khondalite

Greenstone (Epidosite or Altered Basalt) (Epidosite (Ca2(Al, Fe)3(SiO4)3(OH))) — metamorphic

Greenstone (Epidosite or Altered Basalt)

Epidosite (Ca2(Al, Fe)3(SiO4)3(OH))

Greenstone (Greenstone River Pebble) (Greenschist (metamorphosed mafic igneous rock)) — metamorphic

Greenstone (Greenstone River Pebble)

Greenschist (metamorphosed mafic igneous rock)

Greenstone (Metabasalt (Greenstone Facies)) — metamorphic

Greenstone

Metabasalt (Greenstone Facies)

Greenstone / Greenschist (Chlorite schist / Epidiorite / Metabasalt) — metamorphic

Greenstone / Greenschist

Chlorite schist / Epidiorite / Metabasalt

Greenschist / Serpentinite Cobble (Greenschist (composed primarily of chlorite, actinolite, and epidote)) — metamorphic

Greenschist / Serpentinite Cobble

Greenschist (composed primarily of chlorite, actinolite, and epidote)

Greenstone (Greenschist facies metabasite) — metamorphic

Greenstone

Greenschist facies metabasite

Greenschist (Chlorite-actinolite schist) — metamorphic

Greenschist

Chlorite-actinolite schist

Greenstone (Metabasalt / Greenschist) — metamorphic

Greenstone

Metabasalt / Greenschist

Greenstone (Greenschist) — metamorphic

Greenstone

Greenschist

Greenstone (Protolith: Basaltic rock) — metamorphic

Greenstone

Protolith: Basaltic rock

Slate (Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)) — metamorphic

Slate

Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)

Slate (Foliated Metamorphic Rock (composed of quartz, illite, and chlorite)) — metamorphic

Slate

Foliated Metamorphic Rock (composed of quartz, illite, and chlorite)

Greenstone (Greenschist (commonly containing Chlorite, Actinolite, and Epidote)) — metamorphic

Greenstone

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Greenstone / Metabasalt (Metamorphosed Mafic Rock (Greenschist facies)) — metamorphic

Greenstone / Metabasalt

Metamorphosed Mafic Rock (Greenschist facies)

Slate (Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)) — metamorphic

Slate

Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)

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

Greenstone

Greenschist (composed of chlorite, actinolite, and epidote)

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Foliated metamorphic rock, likely slate or phyllite (Slate–phyllite; composition commonly quartz, mica, and chlorite) — metamorphic

Foliated metamorphic rock, likely slate or phyllite

Slate–phyllite; composition commonly quartz, mica, and chlorite

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Schist (Metamorphic Schist) — metamorphic

Schist

Metamorphic Schist

Fuchsite (Chrome Mica) (K(Al,Cr)2(AlSi3O10)(OH)2) — mineral

Fuchsite (Chrome Mica)

K(Al,Cr)2(AlSi3O10)(OH)2

Phyllite (Phyllite) — metamorphic

Phyllite

Phyllite

Fuchsite (Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Black Slate (Slate (Metamorphic Rock)) — metamorphic

Black Slate

Slate (Metamorphic Rock)

Slate (Foliated Metamorphic Slate) — metamorphic

Slate

Foliated Metamorphic Slate

Slate (Metamorphic pelitic rock) — metamorphic

Slate

Metamorphic pelitic rock

Slate with Quartz (Low-grade Metamorphic Slate with SiO2 inclusions) — metamorphic

Slate with Quartz

Low-grade Metamorphic Slate with SiO2 inclusions

Slate (Slate) — metamorphic

Slate

Slate

Greenstone / Greenschist (Chlorite schist / Epidiorite) — metamorphic

Greenstone / Greenschist

Chlorite schist / Epidiorite

Jade (Jadeite/Nephrite) (NaAlSi2O6 (Jadeite) / Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite)) — metamorphic

Jade (Jadeite/Nephrite)

NaAlSi2O6 (Jadeite) / Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite)

Greenstone Pebbles (Basalt/Diabase) (Metamorphosed Mafic Rock (Greenstone)) — metamorphic

Greenstone Pebbles (Basalt/Diabase)

Metamorphosed Mafic Rock (Greenstone)

Slate (Slate (Metamorphosed Shale or Mudstone)) — metamorphic

Slate

Slate (Metamorphosed Shale or Mudstone)

Greenstone / Greenschist (Greenschist (metamorphosed mafic rock)) — metamorphic

Greenstone / Greenschist

Greenschist (metamorphosed mafic rock)

Greenstone (Greenschist) — metamorphic

Greenstone

Greenschist

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

Greenstone

Metabasalt (composed mainly of chlorite, epidote, and actinolite)

Greenstone (Metabaltic/Greenschist) (Chlorite schist / Meta-basalt) — metamorphic

Greenstone (Metabaltic/Greenschist)

Chlorite schist / Meta-basalt

Greenschist / Basalt Beach Pebble (Metabasalt / Chlorite Schist) — metamorphic

Greenschist / Basalt Beach Pebble

Metabasalt / Chlorite Schist

Greenstone (Metabasalt / Chlorite-Epidote Schist) — metamorphic

Greenstone

Metabasalt / Chlorite-Epidote Schist

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

Greenstone

Greenschist / Greenstone (contains epidote, chlorite, and actinolite)

Slate (Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)) — metamorphic

Slate

Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)

Greenstone with Epidote or Quartz veins (Metabasalt (Greenstone facies)) — metamorphic

Greenstone with Epidote or Quartz veins

Metabasalt (Greenstone facies)

Greenstone (Greenschist / Meta-basalt) — metamorphic

Greenstone

Greenschist / Meta-basalt