Rock Identifier

Category

Metamorphic Or Igneous (Context Dependent)

Browse metamorphic or igneous (context dependent) specimens identified by the Rock Identifier community.

Learn about Metamorphic Or Igneous (Context Dependent) in the encyclopedia

Carbonatite

Cordierite Hornfels

Cordierite Hornfels

Metabasalt

Eulysite

Migmatite

Anthracite

Hornfels

Metaquartzite

Slate

Marble

Metarhyolite

Metagabbro

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

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

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

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2)

Peacock Ore (Bornite/Chalcopyrite) (Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite/Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)

Gneiss (Metamorphic Gneiss) — metamorphic

Gneiss

Metamorphic Gneiss

Hypersthene (or Enstatite/Ferrosilite) (Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)) — Mineral

Hypersthene (or Enstatite/Ferrosilite)

Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)

Banded Basalt / Lave Stone or Gneiss Pebble (Igneous/Metamorphic banded pebble) — igneous

Banded Basalt / Lave Stone or Gneiss Pebble

Igneous/Metamorphic banded pebble

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Quartz with Iron Staining

Silicon Dioxide (SiO2)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Greenschist (Chlorite Schist) — metamorphic

Greenschist

Chlorite Schist

Hypersthene (Hypersthene ((Mg,Fe)SiO₃)) — Mineral

Hypersthene

Hypersthene ((Mg,Fe)SiO₃)

Iolite (Cordierite) (Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18) — Mineral

Iolite (Cordierite)

Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Clear Quartz (Faceted) (SiO2 - Silicon Dioxide) — gemstone

Clear Quartz (Faceted)

SiO2 - Silicon Dioxide

Faceted Clear Quartz or Diamond Simulant (Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic) — gemstone

Faceted Clear Quartz or Diamond Simulant

Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Serafina (Serafinite / Clinochlore) (Clinochlore (Mg5Al)(AlSi3O10)(OH)8) — mineral

Serafina (Serafinite / Clinochlore)

Clinochlore (Mg5Al)(AlSi3O10)(OH)8

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)) — mineral

Quartz (Pebble)

Silicon Dioxide (SiO2)

Black Tourmaline (Schorl) (NaFe3+3Al6(BO3)3Si6O18(OH)4) — mineral

Black Tourmaline (Schorl)

NaFe3+3Al6(BO3)3Si6O18(OH)4

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

Quartz Crystal Rock

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon Dioxide (Chalcedony), SiO2

Yellow Calcite (Calcium Carbonate, CaCO3) — mineral

Yellow Calcite

Calcium Carbonate, CaCO3

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz with inclusions (SiO2) — mineral

Quartz with inclusions

SiO2

Reddish-brown crystalline rock, possibly weathered granite or garnet-bearing schist (Indeterminate; likely quartz–feldspar–mica rock with iron oxides, potentially garnet-bearing) — metamorphic

Reddish-brown crystalline rock, possibly weathered granite or garnet-bearing schist

Indeterminate; likely quartz–feldspar–mica rock with iron oxides, potentially garnet-bearing

Corundum (Corundum (Aluminium oxide, Al2O3)) — mineral

Corundum

Corundum (Aluminium oxide, Al2O3)

Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

Ruby (in a ring setting) (Corundum (Al2O3:Cr)) — gemstone

Ruby (in a ring setting)

Corundum (Al2O3:Cr)

Epidote in Quartz (Epidosite) (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote in Quartz (Epidosite)

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

Magnetite with Quartz (Magnetite (Fe3O4)) — mineral

Magnetite with Quartz

Magnetite (Fe3O4)

Lapis Lazuli (Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)

Polished gray stone, likely labradorite or gneiss (Indeterminate from image; possibly plagioclase-rich gneiss or labradorite-bearing rock) — mineral

Polished gray stone, likely labradorite or gneiss

Indeterminate from image; possibly plagioclase-rich gneiss or labradorite-bearing rock

Labradorite (Labradorite (Ca, Na)(Al, Si)4O8) — mineral

Labradorite

Labradorite (Ca, Na)(Al, Si)4O8