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

Amethyst (Silicon Dioxide (SiO2) containing iron impurities and irradiation) — mineral

Amethyst

Silicon Dioxide (SiO2) containing iron impurities and irradiation

Orthoclase Feldspar (K(AlSi3O8)) — mineral

Orthoclase Feldspar

K(AlSi3O8)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

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

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2) with Hematite/Limonite

Faceted Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — gemstone

Faceted Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Multi-Gemstone Quartz Bracelet (Amethyst, Aventurine, Rose Quartz, Clear Quartz) (Silicon Dioxide (SiO2) mixture) — gemstone

Multi-Gemstone Quartz Bracelet (Amethyst, Aventurine, Rose Quartz, Clear Quartz)

Silicon Dioxide (SiO2) mixture

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Amethyst (Tumbled) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Tumbled)

Silicon Dioxide (SiO2) with iron impurities

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Hematite (Iron (III) oxide (Fe2O3)) — mineral

Hematite

Iron (III) oxide (Fe2O3)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Blue Quartz

Quartz (Silicon Dioxide) with blue inclusions (SiO2)

Biotite Mica in Quartz (Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)) — mineral

Biotite Mica in Quartz

Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Garnet (Garnet group species (likely Almandine, Fe3Al2(SiO4)3)) — mineral

Garnet

Garnet group species (likely Almandine, Fe3Al2(SiO4)3)

Rough Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Rough Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Smoky Quartz (Silicon Dioxide (SiO₂)) — mineral

Smoky Quartz

Silicon Dioxide (SiO₂)

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

Quartz (Milky/Rose Quartz variety)

Silicon Dioxide (SiO2)

Sapphire (Corundum (Al2O3)) — mineral

Sapphire

Corundum (Al2O3)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Orthoclase Feldspar (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Orthoclase Feldspar with Quartz (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar with Quartz

Orthoclase (KAlSi3O8)

Magnetite with Serpentine (Magnetite (Fe3O4) in Serpentine Matrix) — mineral

Magnetite with Serpentine

Magnetite (Fe3O4) in Serpentine Matrix

Yellow Citrine Quartz (Silicon Dioxide (SiO₂)) — mineral

Yellow Citrine Quartz

Silicon Dioxide (SiO₂)

Magnetite / Iron Ore (likely Hematite-Magnetite mix) (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore (likely Hematite-Magnetite mix)

Magnetite (Fe3O4)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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

Milky Quartz on Matrix

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

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

Smoky Quartz (with inclusions)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)