Rock Identifier

Category

Metamorphic And Igneous Rocks

Browse metamorphic and igneous rocks specimens identified by the Rock Identifier community.

Learn about Metamorphic And Igneous Rocks in the encyclopedia

Cordierite Hornfels

Cordierite Hornfels

Migmatite

Hornblende Schist

Hornblende Schist

Chlorite Schist

Chlorite Schist

Talc Schist

Talc-carbonate Rock

Talc-carbonate Rock

Epidosite

Feldspar

Chromite

Schorlomite

Goldmanite

Kokchetavite

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz Vein / Quartzite Specimens (Silicon Dioxide (SiO2)) — mineral

Quartz Vein / Quartzite Specimens

Silicon Dioxide (SiO2)

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

Quartz Druzy / Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Quartz Pebble (River Agate / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (River Agate / Chalcedony)

Silicon Dioxide (SiO2)

Migmatite (Migmatite (Mixed Rock)) — metamorphic

Migmatite

Migmatite (Mixed Rock)

Ruby (Corundum (Al2O3:Cr)) — gemstone

Ruby

Corundum (Al2O3:Cr)

Quartz Pebble (Crystalline Silica (SiO2)) — sedimentary

Quartz Pebble

Crystalline Silica (SiO2)

Yellow Sapphire (Corundum (Al2O3:Fe)) — gemstone

Yellow Sapphire

Corundum (Al2O3:Fe)

Blue Sapphire (Corundum (Al2O3)) — gemstone

Blue Sapphire

Corundum (Al2O3)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Diamond and Sapphire (Carbon (Diamond, C) and Aluminum Oxide (Sapphire, Al2O3)) — gemstone

Diamond and Sapphire

Carbon (Diamond, C) and Aluminum Oxide (Sapphire, Al2O3)

Parti Sapphire (Corundum (Al2O3)) — mineral

Parti Sapphire

Corundum (Al2O3)

Native Gold (in the form of jewelry) (Gold (Au)) — mineral

Native Gold (in the form of jewelry)

Gold (Au)

Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

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

Quartz (Smoky/Clear variety)

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Ferruginous Quartz (Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)

Calcite (Calcite (CaCO3)) — Mineral

Calcite

Calcite (CaCO3)

Sandstone (Micaceous Sandstone) (Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)) — sedimentary

Sandstone (Micaceous Sandstone)

Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)

Ruby (Raw Corundum) (Corundum (Al2O3:Cr)) — mineral

Ruby (Raw Corundum)

Corundum (Al2O3:Cr)

Blue Sapphire (Corundum (Al2O3) with traces of Iron and Titanium) — mineral

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

White quartz-rich pebble (Likely quartzite or milky-quartz pebble (SiO₂)) — mineral

White quartz-rich pebble

Likely quartzite or milky-quartz pebble (SiO₂)

Milky quartz (Quartz (SiO₂), likely massive milky quartz with minor iron-oxide staining and inclusions) — mineral

Milky quartz

Quartz (SiO₂), likely massive milky quartz with minor iron-oxide staining and inclusions

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

Milky quartz vein fragment

Quartz, silicon dioxide (SiO₂)

Faceted yellow gemstone, likely citrine (Citrine (quartz), SiO₂; possibly yellow sapphire or synthetic glass without testing) — gemstone

Faceted yellow gemstone, likely citrine

Citrine (quartz), SiO₂; possibly yellow sapphire or synthetic glass without testing

Blue Sapphire and Diamond (Set in Metal) (Corundum (Al2O3) and Diamond (C)) — mineral

Blue Sapphire and Diamond (Set in Metal)

Corundum (Al2O3) and Diamond (C)

Green Calcite (Calcite (CaCO3)) — mineral

Green Calcite

Calcite (CaCO3)

Sapphire (Corundum variety) (Sapphire (Al₂O₃)) — Mineral

Sapphire (Corundum variety)

Sapphire (Al₂O₃)

Gold (Processed) (Gold (Au)) — Metal (Elemental Mineral)

Gold (Processed)

Gold (Au)

Metal (Elemental Mineral)

Calcite (or Alabaster, if truly carved) (Calcium Carbonate (CaCO3)) — Mineral/Rock

Calcite (or Alabaster, if truly carved)

Calcium Carbonate (CaCO3)

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30) — mineral

Sugilite

KNa2(Fe,Mn,Al)2Li3Si12O30

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

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Pink/Rose or Hematinoid Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pink/Rose or Hematinoid Quartz)

Silicon Dioxide (SiO2)

Quartz fragment (Quartz (silicon dioxide, SiO₂), likely milky or smoky quartz) — mineral

Quartz fragment

Quartz (silicon dioxide, SiO₂), likely milky or smoky quartz

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Labradorite

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

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz (Faceted Crystal)

Silicon Dioxide (SiO2)

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

Labradorite

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