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

Anthracite Coal (Anthracite coal (Carbon)) — metamorphic

Anthracite Coal

Anthracite coal (Carbon)

Greenstone (Metabasalt) — metamorphic

Greenstone

Metabasalt

Dark slate (probable) (Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz; exact identification is uncertain from the photograph.) — metamorphic

Dark slate (probable)

Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz; exact identification is uncertain from the photograph.

Epidote Water-Worn Pebble (Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)) — metamorphic

Epidote Water-Worn Pebble

Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Gray Slate Pebble (Slate (metamorphosed mudstone/shale)) — metamorphic

Gray Slate Pebble

Slate (metamorphosed mudstone/shale)

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

Slate

Slate (Metamorphosed Mudstone/Shale)

Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock

Greenstone (Epidisite / Chlorite Schist) (Metabasalt (often contains Epidote Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) and Chlorite)) — metamorphic

Greenstone (Epidisite / Chlorite Schist)

Metabasalt (often contains Epidote Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) and Chlorite)

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

Greenstone / Greenschist

Greenschist (metamorphosed mafic rock)

Greenstone or Metabasalt (Metabasalt / Chlorite Schist) — metamorphic

Greenstone or Metabasalt

Metabasalt / Chlorite Schist

Phyllite (Phyllite (Foliated metamorphic rock)) — metamorphic

Phyllite

Phyllite (Foliated metamorphic rock)

Greenstone (Metabasalt / Chlorite Schist) — metamorphic

Greenstone

Metabasalt / Chlorite Schist

Slate (Metamorphic mudstone or shale) — metamorphic

Slate

Metamorphic mudstone or shale

Slate (Metamorphic pelitic rock) — metamorphic

Slate

Metamorphic pelitic rock

Green Schist (Greenschist) (Greenschist facies metamorphic rock) — metamorphic

Green Schist (Greenschist)

Greenschist facies metamorphic rock

Foliated slate or phyllite (Fine-grained metamorphosed mudstone; typically quartz, mica, chlorite, and clay-derived minerals) — metamorphic

Foliated slate or phyllite

Fine-grained metamorphosed mudstone; typically quartz, mica, chlorite, and clay-derived minerals

Slate (Slate (Metamorphic Rock)) — metamorphic

Slate

Slate (Metamorphic Rock)

Jadeite (NaAlSi2O6) — gemstone

Jadeite

NaAlSi2O6

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Fuchsite in Quartz (or Emerald in Fuchsite / Verdite) (Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartz Matrix) — metamorphic

Fuchsite in Quartz (or Emerald in Fuchsite / Verdite)

Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartz Matrix

Schist (Metamorphic Rock (Schist)) — metamorphic

Schist

Metamorphic Rock (Schist)

Epidote in Quartz (Epidosite) (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote in Quartz (Epidosite)

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

Kyanite in Quartz (Kyanite (Al2SiO5) with Quartz (SiO2) matrix) — metamorphic

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2) matrix

Jadeite Jade (NaAlSi2O6 (Sodium Aluminum Silicate)) — metamorphic

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Eclogite

Eclogite (Omphacite-Garnet Rock)

Epidote in Matrix (Unakite-like Rock Fragment) (Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) / Altered Metamorphic Pebble) — metamorphic

Epidote in Matrix (Unakite-like Rock Fragment)

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) / Altered Metamorphic Pebble

Jadeite (NaAlSi2O6) — mineral

Jadeite

NaAlSi2O6

Greenschist (Chlorite Schist) — metamorphic

Greenschist

Chlorite Schist

Pyrite in Quartz (Iron Sulfide in Silicon Dioxide (FeS2 + SiO2)) — mineral

Pyrite in Quartz

Iron Sulfide in Silicon Dioxide (FeS2 + SiO2)

Greenstone (Metabasalt) — metamorphic

Greenstone

Metabasalt

Greenstone (Metabasalt) — metamorphic

Greenstone

Metabasalt

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote

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

Greenstone (Greenschist / Meta-basalt) — metamorphic

Greenstone

Greenschist / Meta-basalt

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

Greenschist

Greenschist (containing Chlorite, Actinolite, and Epidote)

Greenstone (Metabasalt / Chlorite-Epidote Schist) — metamorphic

Greenstone

Metabasalt / Chlorite-Epidote Schist

Greenstone (Greenschist (Metamorphosed Mafic Rock)) — metamorphic

Greenstone

Greenschist (Metamorphosed Mafic Rock)

Greenstone / Greenschist (Greenschist (composed of Chlorite, Epidote, and Actinolite)) — metamorphic

Greenstone / Greenschist

Greenschist (composed of Chlorite, Epidote, and Actinolite)

Greenstone (Metabasalt (Greenstone facies)) — metamorphic

Greenstone

Metabasalt (Greenstone facies)

Greenstone (Metabasalt / Greenstone) — metamorphic

Greenstone

Metabasalt / Greenstone

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

Greenschist

Greenschist (containing Chlorite, Epidote, and Actinolite)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)