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

Green Aventurine and Clear Quartz (Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)) — Mineral

Green Aventurine and Clear Quartz

Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Gneiss (High-grade Metamorphic Gneiss) — metamorphic

Gneiss

High-grade Metamorphic Gneiss

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Muscovite Mica (Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2) — mineral

Muscovite Mica

Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2

Greenschist (Chlorite schist) — metamorphic

Greenschist

Chlorite schist

Green Slate Pebble (Serpentine / Greenschist Pebble) (Greenschist / Low-grade Metamorphic Rock) — metamorphic

Green Slate Pebble (Serpentine / Greenschist Pebble)

Greenschist / Low-grade Metamorphic Rock

Granite Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

White Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Pyrite (Iron sulfide (FeS2)) — mineral

Pyrite

Iron sulfide (FeS2)

Yellow Aventurine (Quartz (Silicon Dioxide, SiO2) with inclusions) — mineral

Yellow Aventurine

Quartz (Silicon Dioxide, SiO2) with inclusions

Tiger's Eye (Quartz with riebeckite inclusions (SiO2)) — mineral

Tiger's Eye

Quartz with riebeckite inclusions (SiO2)

Prehnite (Calcium aluminum silicate hydroxide, Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Calcium aluminum silicate hydroxide, Ca2Al(AlSi3O10)(OH)2

Quartz (Milky / Clear Quartz Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky / Clear Quartz Fragment)

Silicon Dioxide (SiO2)

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

Prehnite

Ca2Al(AlSi3O10)(OH)2

Chalcopyrite (Peacock Ore) (Chalcopyrite (CuFeS2)) — mineral

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2)

Silver (Native Element) (Ag (Argentum)) — mineral

Silver (Native Element)

Ag (Argentum)

Agate (Agate (Silicon Dioxide, SiO2)) — mineral

Agate

Agate (Silicon Dioxide, SiO2)

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

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

Epidote

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

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Gneiss (Foliated Metamorphic Rock) — metamorphic

Gneiss

Foliated Metamorphic Rock

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

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

Rhodonite

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

Rhodonite (Rhodonite (Mn2+SiO3)) — mineral

Rhodonite

Rhodonite (Mn2+SiO3)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Banded gneiss (Orthogneiss or paragneiss, chiefly quartz–feldspar–mica) — metamorphic

Banded gneiss

Orthogneiss or paragneiss, chiefly quartz–feldspar–mica

Quartz–feldspar–mica metamorphic rock, likely gneiss (Gneiss; composition commonly quartz (SiO₂), feldspars, biotite/hornblende, and minor accessory minerals) — metamorphic

Quartz–feldspar–mica metamorphic rock, likely gneiss

Gneiss; composition commonly quartz (SiO₂), feldspars, biotite/hornblende, and minor accessory minerals

Raw greenish crystal/mineral fragment (Uncertain from image; possibly olivine (forsterite-rich), epidote, or green tourmaline) — mineral

Raw greenish crystal/mineral fragment

Uncertain from image; possibly olivine (forsterite-rich), epidote, or green tourmaline

Quartz / Feldspar Specimen (SiO2 (Quartz) / KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar Group)) — mineral

Quartz / Feldspar Specimen

SiO2 (Quartz) / KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar Group)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite Pebble (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartzite (SiO2)

Slate (Slate (Metamorphic Rock)) — metamorphic

Slate

Slate (Metamorphic Rock)

Chalcopyrite (CuFeS2 (Copper Iron Sulfide)) — mineral

Chalcopyrite

CuFeS2 (Copper Iron Sulfide)

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

Quartz with Inclusions

Silicon Dioxide (SiO2)

Clear Quartz (Faceted Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Faceted Crystal)

Silicon Dioxide (SiO2)

Dumortierite Quartz (Blue Quartz) (Al7BO3(SiO4)3O3 with Quartz (SiO2)) — mineral

Dumortierite Quartz (Blue Quartz)

Al7BO3(SiO4)3O3 with Quartz (SiO2)

Pyrite or Chalcopyrite (Iron sulfide (FeS2) or Copper iron sulfide (CuFeS2)) — mineral

Pyrite or Chalcopyrite

Iron sulfide (FeS2) or Copper iron sulfide (CuFeS2)

Tiger's Eye (Rough) (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2)

Arsenopyrite (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite

Arsenopyrite (FeAsS)