Rock Identifier

Category

Metamorphic Or Igneous

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

Learn about Metamorphic Or Igneous in the encyclopedia

Carbonatite

Cordierite Hornfels

Cordierite Hornfels

Metabasalt

Eulysite

Migmatite

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Metagabbro

Iolite (Cordierite (Magnesium Aluminum Silicate, (Mg,Fe)2Al3(AlSi5O18))) — gemstone

Iolite

Cordierite (Magnesium Aluminum Silicate, (Mg,Fe)2Al3(AlSi5O18))

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky/Snow)

Silicon Dioxide (SiO2)

Blue Apatite (Fluoroapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluoroapatite (Ca5(PO4)3F)

Hypersthene (Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)) — mineral

Hypersthene

Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Mica (Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)) — mineral

Mica

Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Sodalite (Sodalite (Na4Al3Si3O12Cl)) — Mineral

Sodalite

Sodalite (Na4Al3Si3O12Cl)

Epidote with Quartz/Feldspar (Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) with associated minerals in a host rock) — Mineral/Metamorphic rock

Epidote with Quartz/Feldspar

Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) with associated minerals in a host rock

Mineral/Metamorphic rock

Muscovite Mica (Muscovite [KAl2(AlSi3O10)(OH)2]) — mineral

Muscovite Mica

Muscovite [KAl2(AlSi3O10)(OH)2]

Almandine Garnet (Fe3Al2(SiO4)3) — gemstone

Almandine Garnet

Fe3Al2(SiO4)3

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

Muscovite Mica

KAl2(AlSi3O10)(OH)2

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

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Ruby in Zoisite (Anyolite (composite of Corundum and Zoisite)) — metamorphic

Ruby in Zoisite

Anyolite (composite of Corundum and Zoisite)

Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald) (Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)) — mineral

Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)

Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)

Garnet-bearing metamorphic rock, likely garnet schist or amphibolite (Almandine garnet (Fe₃Al₂Si₃O₁₂) in mica- or amphibole-rich matrix) — metamorphic

Garnet-bearing metamorphic rock, likely garnet schist or amphibolite

Almandine garnet (Fe₃Al₂Si₃O₁₂) in mica- or amphibole-rich matrix

Gneiss (Metamorphic Gneiss) — metamorphic

Gneiss

Metamorphic Gneiss

Dark, coarse-grained rock (possibly diorite or amphibolite) (Undetermined; likely a mafic to intermediate rock containing plagioclase and dark amphibole or pyroxene) — igneous

Dark, coarse-grained rock (possibly diorite or amphibolite)

Undetermined; likely a mafic to intermediate rock containing plagioclase and dark amphibole or pyroxene

Polished blue banded stone, likely sodalite or blue apatite (Probable sodalite, Na₈(Al₆Si₆O₂₄)Cl₂; possibly blue apatite, Ca₅(PO₄)₃(F,Cl,OH)) — mineral

Polished blue banded stone, likely sodalite or blue apatite

Probable sodalite, Na₈(Al₆Si₆O₂₄)Cl₂; possibly blue apatite, Ca₅(PO₄)₃(F,Cl,OH)

Epidote (Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))) — mineral

Epidote

Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

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

Milky quartz

Quartz (silicon dioxide, SiO₂)

Likely rough quartz with iron-oxide staining (Quartz (SiO₂), possibly with iron-oxide inclusions or surface staining) — mineral

Likely rough quartz with iron-oxide staining

Quartz (SiO₂), possibly with iron-oxide inclusions or surface staining

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Pegmatite (Pegmatitic Granite containing Quartz, Feldspar, and Schorl) — igneous

Pegmatite

Pegmatitic Granite containing Quartz, Feldspar, and Schorl

Milky Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Smoky/Milky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Small quartz-rich pebble, possibly milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Small quartz-rich pebble, possibly milky quartz

Quartz (silicon dioxide, SiO₂)

Corundum (Sapphire/Ruby in Matrix) (Aluminium oxide (Al2O3)) — mineral

Corundum (Sapphire/Ruby in Matrix)

Aluminium oxide (Al2O3)

Schist (Metamorphic rock (Schist)) — metamorphic

Schist

Metamorphic rock (Schist)

Basalt Pebble (Aphanitic Igneous Rock) — igneous

Basalt Pebble

Aphanitic Igneous Rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Likely magnetite-bearing rock (Magnetite (Fe₃O₄), possibly in a mafic host rock) — igneous

Likely magnetite-bearing rock

Magnetite (Fe₃O₄), possibly in a mafic host rock

Quartz (SiO2 (Silicon Dioxide)) — mineral

Quartz

SiO2 (Silicon Dioxide)

Biotite Mica (Biotite (K(Mg,Fe)3(AlSi3O10)(F,OH)2)) — mineral

Biotite Mica

Biotite (K(Mg,Fe)3(AlSi3O10)(F,OH)2)