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

Aquamarine with Ruby Accent (Beryllium Aluminum Silicate (Be3Al2Si6O18) with Aluminum Oxide (Al2O3)) — mineral

Aquamarine with Ruby Accent

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Aluminum Oxide (Al2O3)

Blue Quartz (potentially Dumortierite-included) (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz (potentially Dumortierite-included)

Silicon Dioxide (SiO2) with inclusions

Quartz / Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz / Citrine Quartz

Silicon Dioxide (SiO2)

Arsenopyrite in Sulphide Ore (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite in Sulphide Ore

Arsenopyrite (FeAsS)

Emerald (Beryl (Be3Al2(SiO3)6) with chromium/vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with chromium/vanadium impurities

Muscovite Mica (KAl2(AlSi3O10)(F,OH)2) — mineral

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Hypersthene (Enstatite (Hypersthene variety), (Mg,Fe)SiO3) — mineral

Hypersthene

Enstatite (Hypersthene variety), (Mg,Fe)SiO3

Arsenopyrite (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite

Arsenopyrite (FeAsS)

Black Tourmaline (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

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

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Eagle Eye / Grey Tiger Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Eagle Eye / Grey Tiger Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

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

Feldspar (specifically Orthoclase)

Potassium Aluminum Silicate (KAlSi3O8)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Agate (Cryptocrystalline quartz (SiO2)) — Mineral

Agate

Cryptocrystalline quartz (SiO2)

Greenschist (Chlorite schist) — metamorphic

Greenschist

Chlorite schist

Rhodonite (Rhodonite; (Mn,Fe,Mg,Ca)SiO3) — Mineral

Rhodonite

Rhodonite; (Mn,Fe,Mg,Ca)SiO3

Black Tourmaline (Schorl) (Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)) — mineral

Black Tourmaline (Schorl)

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Greenstone (metamorphosed basalt) (Greenschist / Meta-basalt) — metamorphic

Greenstone (metamorphosed basalt)

Greenschist / Meta-basalt

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Marble (Recrystallized Carbonate Rock (CaCO3)) — metamorphic

Marble

Recrystallized Carbonate Rock (CaCO3)

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

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

White Marble (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble

Recrystallized Calcite (CaCO3)

Unakite (Unakite (Epidote-Feldspar rock)) — Metamorphic rock

Unakite

Unakite (Epidote-Feldspar rock)

Metamorphic rock

Black Star Diopside (beads) (Diopside (CaMgSi2O6) - a member of the pyroxene group) — Mineral

Black Star Diopside (beads)

Diopside (CaMgSi2O6) - a member of the pyroxene group

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite Arrowhead (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite Arrowhead

Quartzite (SiO2 silicon dioxide)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Fuchsite inclusion (Silicon Dioxide (SiO2) with Chromium-rich Muscovite) — metamorphic

Milky Quartz with Fuchsite inclusion

Silicon Dioxide (SiO2) with Chromium-rich Muscovite

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Schist (specifically Mica Schist) (Mica Schist) — metamorphic

Schist (specifically Mica Schist)

Mica Schist

Pink Quartzite (Quartzite (principally SiO2)) — metamorphic

Pink Quartzite

Quartzite (principally SiO2)

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

Milky Quartz with Iron Inclusions

Quartz (Silicon Dioxide, SiO2)

Quartz Vein in Mica Schist (Quartz (SiO2) with Muscovite/Biotite Schist) — metamorphic

Quartz Vein in Mica Schist

Quartz (SiO2) with Muscovite/Biotite Schist

Quartz (Milky/Crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline)

Silicon Dioxide (SiO2)

Clear Quartz (Double Terminated) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Double Terminated)

Silicon Dioxide (SiO2)

Dragon Stone (Dragon Blood Jasper) (Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Dragon Stone (Dragon Blood Jasper)

Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))

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

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2

Soapstone (Steatite) (Steatite (Hydrous magnesium silicate)) — metamorphic

Soapstone (Steatite)

Steatite (Hydrous magnesium silicate)

Milky Quartz Pebble (Crystalline Silicon Dioxide (SiO2)) — mineral

Milky Quartz Pebble

Crystalline Silicon Dioxide (SiO2)