Rock Identifier

Category

Metamorphic And Igneous

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

Learn about Metamorphic And Igneous in the encyclopedia

Carbonatite

Cordierite Hornfels

Cordierite Hornfels

Metabasalt

Eulysite

Migmatite

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Metagabbro

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix) — Metamorphic or Igneous (context dependent)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix

Metamorphic or Igneous (context dependent)

Quartz Vein in Gneiss or Basalt (Milky Quartz (SiO2) within Metamorphic Host Rock) — Metamorphic or Igneous with Mineral Inclusion

Quartz Vein in Gneiss or Basalt

Milky Quartz (SiO2) within Metamorphic Host Rock

Metamorphic or Igneous with Mineral Inclusion

Unakite (often traded as Dragon Blood Jasper) (Epidotized Granite) — Metamorphic (Altered Igneous rock)

Unakite (often traded as Dragon Blood Jasper)

Epidotized Granite

Metamorphic (Altered Igneous rock)

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

Calcite (or Alabaster, if truly carved)

Calcium Carbonate (CaCO3)

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

Clear Quartz (Faceted Crystal)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Likely quartz-bearing rock fragment (Quartz (SiO₂), possibly with iron-oxide staining or other mineral inclusions) — mineral

Likely quartz-bearing rock fragment

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

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Tumbled quartz pebble, possibly citrine or pale smoky quartz (Quartz (SiO₂), likely microcrystalline/tumbled material) — mineral

Tumbled quartz pebble, possibly citrine or pale smoky quartz

Quartz (SiO₂), likely microcrystalline/tumbled material

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Likely milky quartz fragment (Quartz (SiO₂)) — mineral

Likely milky quartz fragment

Quartz (SiO₂)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

White Quartz (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

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

White Quartz

Quartz (Silicon Dioxide, SiO2)

Raw quartz crystal (Quartz (silicon dioxide, SiO₂), likely milky or iron-stained quartz) — mineral

Raw quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or iron-stained quartz

Likely milky quartz fragment (Quartz, silicon dioxide (SiO₂)) — mineral

Likely milky quartz fragment

Quartz, silicon dioxide (SiO₂)

Magnetite (Lodestone variety) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

Blue Apatite (Apatite (Group), Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Group), Ca5(PO4)3(F,Cl,OH)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Blue gemstone in a decorative setting (possibly blue spinel or sapphire) (Unidentified blue faceted gemstone; sapphire is corundum (Al₂O₃), while spinel is MgAl₂O₄) — gemstone

Blue gemstone in a decorative setting (possibly blue spinel or sapphire)

Unidentified blue faceted gemstone; sapphire is corundum (Al₂O₃), while spinel is MgAl₂O₄

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Tumbled milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

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

Milky quartz crystal cluster

Quartz (silicon dioxide, SiO₂)

Likely milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Likely milky quartz

Quartz (silicon dioxide, SiO₂)

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

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Blue Apatite (Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)) — mineral

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)

Magnetite Ore (Magnetite (Fe3O4)) — mineral

Magnetite Ore

Magnetite (Fe3O4)

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

Milky quartz

Quartz (silicon dioxide, SiO₂)

Fossilized marine shell fragment (Likely a bivalve or gastropod shell preserved as calcite (CaCO₃)) — fossil

Fossilized marine shell fragment

Likely a bivalve or gastropod shell preserved as calcite (CaCO₃)

Small quartz-rich mineral fragment (Quartz (SiO₂), possibly milky or chalcedonic quartz) — mineral

Small quartz-rich mineral fragment

Quartz (SiO₂), possibly milky or chalcedonic quartz

Nephrite Jade (Nephrite) — Mineral/Rock

Nephrite Jade

Nephrite

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Apatite (Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Apatite

Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))

Yellow Sapphire (Pukhraj) (Corundum (Al2O3)) — gemstone

Yellow Sapphire (Pukhraj)

Corundum (Al2O3)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Zoisite with Hornblende (Zoisite (Ca2Al3(SiO4)3(OH)) with Amphibole inclusions) — metamorphic

Zoisite with Hornblende

Zoisite (Ca2Al3(SiO4)3(OH)) with Amphibole inclusions

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

Milky quartz

Quartz, silicon dioxide (SiO₂)

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

Apatite

Fluorapatite (Ca5(PO4)3F)