Rock Identifier

Category

Metamorphic Or Mineral

Browse metamorphic or mineral specimens identified by the Rock Identifier community.

Learn about Metamorphic Or Mineral in the encyclopedia

Metabasalt

Glauconite

Eulysite

Hutcheonite

Halite

Anthracite

Eltyubyuite

Metaquartzite

Metagabbro

Slate

Sperrylite

Paracelsian

Green Aventurine (SiO2) — mineral

Green Aventurine

SiO2

Black Spinel (Magnesium Aluminum Oxide (MgAl2O4)) — mineral

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

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

Staurolite (Fairy Cross)

Staurolite (Fe2+2Al9Si4O23(OH))

Clear quartz crystal (tentative) (Quartz, silicon dioxide (SiO₂)) — mineral

Clear quartz crystal (tentative)

Quartz, silicon dioxide (SiO₂)

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Magnetite / Iron Ore (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore

Magnetite (Fe3O4)

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

Epidote

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

Green Schist (Greenschist) (Greenschist facies metamorphic rock) — metamorphic

Green Schist (Greenschist)

Greenschist facies metamorphic rock

Greenschist (Greenschist facies metamorphic rock) — metamorphic

Greenschist

Greenschist facies metamorphic rock

Gneiss (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Foliated Metamorphic Rock)

Slate (Metamorphic Mudstone / Shale) — metamorphic

Slate

Metamorphic Mudstone / Shale

Banded Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic Rock)

Banded Gneiss (Banded Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Banded Gneiss (Metamorphic Rock)

Green Tourmaline (Verdelite) (Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)) — gemstone

Green Tourmaline (Verdelite)

Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Glaucophane / Blue Schist (Glaucophane (Na2(Mg3Al2)Si8O22(OH)2)) — metamorphic

Glaucophane / Blue Schist

Glaucophane (Na2(Mg3Al2)Si8O22(OH)2)

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 (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)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Tumbled brown tourmaline (Dravite–schorl tourmaline, complex borosilicate; approximate formula Na(Mg,Fe)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) — mineral

Tumbled brown tourmaline

Dravite–schorl tourmaline, complex borosilicate; approximate formula Na(Mg,Fe)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Likely clear quartz pebble or glassy quartz fragment (Quartz (silicon dioxide, SiO₂)) — mineral

Likely clear quartz pebble or glassy quartz fragment

Quartz (silicon dioxide, SiO₂)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Gneiss (Gneiss (Metamorphic rock)) — metamorphic

Gneiss

Gneiss (Metamorphic rock)

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Fuchsite (Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Epidote (Greenstone) (Calcium aluminum iron silicate hydroxide Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) — metamorphic

Epidote (Greenstone)

Calcium aluminum iron silicate hydroxide Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)

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)

Tumbled quartz-rich pebble (Microcrystalline quartz (SiO₂), possibly milky quartz or chalcedony) — mineral

Tumbled quartz-rich pebble

Microcrystalline quartz (SiO₂), possibly milky quartz or chalcedony

Milky quartz (iron-stained quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

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

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Garnet Schist (Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)) — metamorphic

Garnet Schist

Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)

Schist or Gneiss pebble (Metamorphic rock (Schist/Gneiss)) — metamorphic

Schist or Gneiss pebble

Metamorphic rock (Schist/Gneiss)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz-rich metamorphic rock, likely mica schist or gneiss (Quartz–feldspar–mica metamorphic aggregate; exact identification requires thin-section or field tests) — metamorphic

Quartz-rich metamorphic rock, likely mica schist or gneiss

Quartz–feldspar–mica metamorphic aggregate; exact identification requires thin-section or field tests

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Slate (Foliated Metamorphic Slate) — metamorphic

Slate

Foliated Metamorphic Slate

Epidosite with Quartz (Unakite-variant or Jasper) (Epidotized Metasomatite) — metamorphic

Epidosite with Quartz (Unakite-variant or Jasper)

Epidotized Metasomatite

Tumbled green aventurine (likely) (Quartz, SiO₂, with green fuchsite mica inclusions) — mineral

Tumbled green aventurine (likely)

Quartz, SiO₂, with green fuchsite mica inclusions

Orange Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)