Rock Identifier

Category

Metamorphic

Browse metamorphic specimens identified by the Rock Identifier community.

Learn about Metamorphic in the encyclopedia

Adinole

Amphibolite

Anthracite

Biotite Schist

Blueschist

Calc-Silicate Rock

Calc-Silicate Rock

Calc-schist

Cataclasite

Chlorite Schist

Chlorite Schist

Cipollino Marble

Cipollino Marble

Cordierite Hornfels

Cordierite Hornfels

Eclogite

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Pyrite Cube (Iron Sulfide (FeS2)) — mineral

Pyrite Cube

Iron Sulfide (FeS2)

Aquamarine (Beryl (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryl (Be3Al2Si6O18)

Jadeite (NaAlSi2O6) — gemstone

Jadeite

NaAlSi2O6

Aquamarine (Beryl (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryl (Be3Al2Si6O18)

Emerald (Beryl (Be3Al2(SiO3)6)) — gemstone

Emerald

Beryl (Be3Al2(SiO3)6)

Calcite (Calcium carbonate (CaCO3)) — mineral

Calcite

Calcium carbonate (CaCO3)

Feldspar (Feldspar (Orthoclase/Microcline)) — mineral

Feldspar

Feldspar (Orthoclase/Microcline)

Pyrite Nodules / Weathered Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite Nodules / Weathered Pyrite

Iron Sulfide (FeS2)

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Jadeite Jade (NaAl(Si2O6)) — gemstone

Jadeite Jade

NaAl(Si2O6)

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

Pink Quartz

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

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

Blue Apatite

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

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Yellow Beryl (Beryl (Be3Al2(SiO3)6)) — mineral

Yellow Beryl

Beryl (Be3Al2(SiO3)6)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Aventurine (likely Green Aventurine) (Silicon Dioxide (SiO2) with mineral inclusions) — Mineral/Mineraloid within a rock matrix

Aventurine (likely Green Aventurine)

Silicon Dioxide (SiO2) with mineral inclusions

Mineral/Mineraloid within a rock matrix

Tumbled jadeite or nephrite jade bead bracelet (Jade: jadeite (NaAlSi₂O₆) or nephrite, a tremolite–actinolite amphibole aggregate) — gemstone

Tumbled jadeite or nephrite jade bead bracelet

Jade: jadeite (NaAlSi₂O₆) or nephrite, a tremolite–actinolite amphibole aggregate

Carved green jade pendant or ornament (Likely jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); image alone cannot distinguish them) — gemstone

Carved green jade pendant or ornament

Likely jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); image alone cannot distinguish them

Pink Rhodonite (Manganese Silicate (MnSiO3)) — mineral

Pink Rhodonite

Manganese Silicate (MnSiO3)

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — Mineral (Variety of Quartz)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Mineral (Variety of Quartz)

Rhodonite (Rhodonite (MnSiO3)) — mineral

Rhodonite

Rhodonite (MnSiO3)

Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Black tourmaline (schorl), possibly rough (Schorl tourmaline, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) — mineral

Black tourmaline (schorl), possibly rough

Schorl tourmaline, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

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

Magnetite (Lodestone)

Magnetite (Fe3O4)

Tumbled ruby-bearing corundum (probable) (Corundum, aluminum oxide (Al₂O₃), colored red by chromium; possibly ruby) — gemstone

Tumbled ruby-bearing corundum (probable)

Corundum, aluminum oxide (Al₂O₃), colored red by chromium; possibly ruby

Green Aventurine (Aventurine Quartz (SiO2 + Fuchsite mica)) — Mineral

Green Aventurine

Aventurine Quartz (SiO2 + Fuchsite mica)

Rhodonite (Rhodonite (MnSiO3)) — mineral

Rhodonite

Rhodonite (MnSiO3)

Greenstone / epidote–chlorite schist (tentative) (Epidote–chlorite schist, likely containing actinolite and quartz/feldspar) — metamorphic

Greenstone / epidote–chlorite schist (tentative)

Epidote–chlorite schist, likely containing actinolite and quartz/feldspar

Serpentinite (likely serpentinized ultramafic rock) (Serpentine-group minerals, chiefly antigorite/lizardite; commonly derived from peridotite) — metamorphic

Serpentinite (likely serpentinized ultramafic rock)

Serpentine-group minerals, chiefly antigorite/lizardite; commonly derived from peridotite

Almandine Garnet (Almandine, Fe3Al2(SiO4)3) — mineral

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Garnet (Silicate mineral group (e.g., Almandine, Fe3Al2(SiO4)3)) — mineral

Garnet

Silicate mineral group (e.g., Almandine, Fe3Al2(SiO4)3)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

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

Epidote

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

Kyanite (Aluminium Silicate, Al2SiO5) — mineral

Kyanite

Aluminium Silicate, Al2SiO5

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

Rhodonite (Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)) — mineral

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)

Mica Schist (Mica Schist (predominantly Muscovite/Biotite Schist)) — metamorphic

Mica Schist

Mica Schist (predominantly Muscovite/Biotite Schist)

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

Epidote

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

Greenschist (Greenschist facies metamorphic rock) — metamorphic

Greenschist

Greenschist facies metamorphic rock

Tiger's Eye (Silicon dioxide (SiO2) with fibrous inclusions of crocidolite) — Mineral

Tiger's Eye

Silicon dioxide (SiO2) with fibrous inclusions of crocidolite