Rock Identifier

Category

Metamorphic Mineral

Browse metamorphic mineral specimens identified by the Rock Identifier community.

Learn about Metamorphic Mineral in the encyclopedia

Metagabbro

Metabasalt

Glauconite

Eulysite

Anthracite

Hutcheonite

Halite

Eltyubyuite

Metaquartzite

Slate

Sperrylite

Paracelsian

Small rounded stone or mineral fragment (Indeterminate; likely a common quartz- or feldspar-bearing silicate fragment) — mineral

Small rounded stone or mineral fragment

Indeterminate; likely a common quartz- or feldspar-bearing silicate fragment

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

Chalcopyrite (Peacock Ore) (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite (Peacock Ore)

Copper Iron Sulfide (CuFeS2)

Natural Gemstone Cabochons (Ruby, Moonstone, Emerald, Citrine) (Ruby (Al2O3:Cr), Moonstone (KAlSi3O8), Emerald (Be3Al2(SiO3)6:Cr), Citrine (SiO2)) — mineral

Natural Gemstone Cabochons (Ruby, Moonstone, Emerald, Citrine)

Ruby (Al2O3:Cr), Moonstone (KAlSi3O8), Emerald (Be3Al2(SiO3)6:Cr), Citrine (SiO2)

Quartz Crystal Cluster / Quartzite (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster / Quartzite

Silicon Dioxide (SiO2)

Quartz with Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz with Matrix

Silicon Dioxide (SiO2)

Sodalite (Sodalite (Na8Al6Si6O24Cl2)) — mineral

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Greenstone (or Greywacke/Metasediment Pebble) (Metamorphosed Mafic Rock / Chlorite Schist) — metamorphic

Greenstone (or Greywacke/Metasediment Pebble)

Metamorphosed Mafic Rock / Chlorite Schist

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Rhodonite (in matrix) (Rhodonite (Mn,Fe,Mg,Ca)SiO3) — Mineral

Rhodonite (in matrix)

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Polished greenstone (likely serpentine) (Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄) — metamorphic

Polished greenstone (likely serpentine)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Greenstone (Metabasalt / Greenschist) — metamorphic

Greenstone

Metabasalt / Greenschist

Schist (Greenschist / Mica Schist) (Schist (variable mineral composition, commonly containing quartz, feldspar, mica, chlorite)) — metamorphic

Schist (Greenschist / Mica Schist)

Schist (variable mineral composition, commonly containing quartz, feldspar, mica, chlorite)

Quartz with Mica inclusions (likely Schist or Gneiss host) (Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)) — metamorphic

Quartz with Mica inclusions (likely Schist or Gneiss host)

Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)

Quartz with Schist Inclusion (Crystalline Silicon Dioxide (SiO2) with Muscovite/Biotite Schist) — metamorphic

Quartz with Schist Inclusion

Crystalline Silicon Dioxide (SiO2) with Muscovite/Biotite Schist

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Quartz pebble with iron staining (Silicon dioxide (SiO2) with iron oxide inclusions) — mineral

Quartz pebble with iron staining

Silicon dioxide (SiO2) with iron oxide inclusions

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Green Aventurine (SiO2) — mineral

Green Aventurine

SiO2

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Epidote

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

Milky Quartz with Iron Inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Orthoclase Feldspar (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Lapis Lazuli (Lazurite-rich metamorphic rock) — metamorphic

Lapis Lazuli

Lazurite-rich metamorphic rock

Mica Schist (Metamorphic rock dominated by micas (muscovite, biotite)) — metamorphic

Mica Schist

Metamorphic rock dominated by micas (muscovite, biotite)

Quartz River Pebble (Quartzite) (Metamorphic Quartzite (SiO2)) — metamorphic

Quartz River Pebble (Quartzite)

Metamorphic Quartzite (SiO2)

Veined quartz-bearing metamorphic rock (Likely quartzite or siliceous schist with iron-oxide staining) — metamorphic

Veined quartz-bearing metamorphic rock

Likely quartzite or siliceous schist with iron-oxide staining

Blue Zircon (Zircon (Zirconium Silicate), ZrSiO4) — gemstone

Blue Zircon

Zircon (Zirconium Silicate), ZrSiO4

Ruby in Kyanite (Corundum in Disthene (Al2SiO5 + Al2O3)) — metamorphic

Ruby in Kyanite

Corundum in Disthene (Al2SiO5 + Al2O3)

Epidote (Unakite-related) (Epidote (Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Epidote (Unakite-related)

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

Weathered green metamorphic rock, possibly serpentinite or greenstone (Likely serpentinite (serpentine-group minerals) or chlorite/epidote-rich greenschist; exact identification requires testing) — metamorphic

Weathered green metamorphic rock, possibly serpentinite or greenstone

Likely serpentinite (serpentine-group minerals) or chlorite/epidote-rich greenschist; exact identification requires testing

Dark rounded pebble (Likely basalt or another fine-grained mafic volcanic rock; exact identification is uncertain from the image) — igneous

Dark rounded pebble

Likely basalt or another fine-grained mafic volcanic rock; exact identification is uncertain from the image

Staurolite (Fairy Cross) (Staurolite (Fe2+2Al9Si4O23(OH))) — metamorphic

Staurolite (Fairy Cross)

Staurolite (Fe2+2Al9Si4O23(OH))

Greenschist (Greenstone River Pebble) (Greenschist (Chlorite Schist)) — metamorphic

Greenschist (Greenstone River Pebble)

Greenschist (Chlorite Schist)

Feldspar (Plagioclase / Potassium Feldspar) (Feldspar Group (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)) — mineral

Feldspar (Plagioclase / Potassium Feldspar)

Feldspar Group (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)