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

Ruby (Raw Corundum) (Corundum (Al2O3) with Chromium traces) — mineral

Ruby (Raw Corundum)

Corundum (Al2O3) with Chromium traces

Limonite or Goethite (Ironstone) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite or Goethite (Ironstone)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Rhodonite-bearing rock (Rhodonite (MnSiO₃), likely with manganese oxides and quartz) — metamorphic

Rhodonite-bearing rock

Rhodonite (MnSiO₃), likely with manganese oxides and quartz

Raw Emerald (Emerald Beryl) (Beryl (Be3Al2Si6O18) with chromium/vanadium impurities) — mineral

Raw Emerald (Emerald Beryl)

Beryl (Be3Al2Si6O18) with chromium/vanadium impurities

Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Blue Quartz (Dumortierite Quartz) (SiO2 with inclusions of AlAl6BSi3O18) — mineral

Blue Quartz (Dumortierite Quartz)

SiO2 with inclusions of AlAl6BSi3O18

Emerald in Matrix (Quartz/Schist) (Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities) — mineral

Emerald in Matrix (Quartz/Schist)

Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities

Specular Hematite (Specularite (Fe2O3)) — mineral

Specular Hematite

Specularite (Fe2O3)

Likely quartz-rich stone (possibly milky quartz or quartzite) (Quartz, silicon dioxide (SiO₂), or quartzite if interlocking grains are present) — mineral

Likely quartz-rich stone (possibly milky quartz or quartzite)

Quartz, silicon dioxide (SiO₂), or quartzite if interlocking grains are present

Epidote (Calcium aluminum iron silicate hydroxide (Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Epidote

Calcium aluminum iron silicate hydroxide (Ca2(Al,Fe)3(SiO4)3(OH))

Garnet (Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3) — mineral

Garnet

Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Sugilite (Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)) — mineral

Sugilite

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)

River Pebble (Gneiss/Schist mix) (Metamorphic rock aggregate) — metamorphic

River Pebble (Gneiss/Schist mix)

Metamorphic rock aggregate

Quartz Vein in Matrix (Gneiss/Schist) (Silicon Dioxide (SiO2) in Metamorphic Rock Matrix) — metamorphic

Quartz Vein in Matrix (Gneiss/Schist)

Silicon Dioxide (SiO2) in Metamorphic Rock Matrix

Schist (Mica Schist (Foliated Metamorphic Rock)) — metamorphic

Schist

Mica Schist (Foliated Metamorphic Rock)

Gneiss (Metamorphic Pebble) (Gneiss (SiO2-rich metamorphic rock)) — metamorphic

Gneiss (Metamorphic Pebble)

Gneiss (SiO2-rich metamorphic rock)

Quartzite with Iron Staining (Metamorphic Quartz Sandstone) — metamorphic

Quartzite with Iron Staining

Metamorphic Quartz Sandstone

Orthoclase Feldspar (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Orthoclase Feldspar (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

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

Epidote

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

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Aquamarine (Beryl) (Beryllium Aluminum Silicate - Be3Al2Si6O18) — gemstone

Aquamarine (Beryl)

Beryllium Aluminum Silicate - Be3Al2Si6O18

Sphalerite (Zinc Sulfide (ZnS)) — mineral

Sphalerite

Zinc Sulfide (ZnS)

Mica Schist (Mica Schist (primarily Muscovite or Biotite sheet silicates)) — metamorphic

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Banded gneiss (Foliated silicate rock, typically quartz–feldspar–mica gneiss) — metamorphic

Banded gneiss

Foliated silicate rock, typically quartz–feldspar–mica gneiss

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Peacock Ore (Bornite (Cu5FeS4) with surface tarnish) — mineral

Peacock Ore

Bornite (Cu5FeS4) with surface tarnish

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Blue Apatite (Apatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Apatite (Ca5(PO4)3(F,Cl,OH))

Small metallic-looking rock fragment (Uncertain; possibly galena-bearing ore or mica-rich schist) — mineral

Small metallic-looking rock fragment

Uncertain; possibly galena-bearing ore or mica-rich schist

Fossilized marine shell fragment (Likely a bivalve or gastropod shell preserved as calcite (CaCO₃)) — fossil

Fossilized marine shell fragment

Likely a bivalve or gastropod shell preserved as calcite (CaCO₃)

Banded Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic Rock)

Schist with Quartz Veins (Schist with Quartz (SiO2)) — metamorphic

Schist with Quartz Veins

Schist with Quartz (SiO2)

Green Slate or Metamorphic Rock with Moss/Lichen (Metamorphic rock / Phyllite or Slate variant) — metamorphic

Green Slate or Metamorphic Rock with Moss/Lichen

Metamorphic rock / Phyllite or Slate variant

Sapphirine in Magnesian Schist (Sapphirine: (Mg,Al)8(Al,Si)6O20) — metamorphic

Sapphirine in Magnesian Schist

Sapphirine: (Mg,Al)8(Al,Si)6O20

Ruby in Zoisite (Anyolite) — metamorphic

Ruby in Zoisite

Anyolite

Magnetite (Lodestone) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone)

Magnetite (Fe3O4)

Rhodonite (Rhodonite (MnSiO3)) — mineral

Rhodonite

Rhodonite (MnSiO3)

Pink Rhodonite (Manganese Silicate (MnSiO3)) — mineral

Pink Rhodonite

Manganese Silicate (MnSiO3)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Pink Quartz (Silicon Dioxide (Quartz), SiO2) — mineral

Pink Quartz

Silicon Dioxide (Quartz), SiO2