Rock Identifier

Category

Igneous Or Mineral

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

Learn about Igneous Or Mineral in the encyclopedia

Carbonatite

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

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

Milky quartz

Quartz (silicon dioxide, SiO₂)

Small rounded stone or mineral fragment (Indeterminate; likely a common quartz- or feldspar-bearing silicate fragment) — mineral

Small rounded stone or mineral fragment

Indeterminate; likely a common quartz- or feldspar-bearing silicate fragment

Milky quartz cluster (Quartz (silicon dioxide, SiO₂), likely anhedral to drusy quartz) — mineral

Milky quartz cluster

Quartz (silicon dioxide, SiO₂), likely anhedral to drusy quartz

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

Milky quartz specimen

Quartz (silicon dioxide, SiO₂)

Uncertain gray metamorphic rock, likely gneiss or schist (Quartz–feldspar–mica rock; exact identification requires close examination) — metamorphic

Uncertain gray metamorphic rock, likely gneiss or schist

Quartz–feldspar–mica rock; exact identification requires close examination

Dark gneiss or migmatitic amphibolite (Band ed gneiss; composition likely quartz–feldspar–biotite/amphibole, possibly migmatite) — metamorphic

Dark gneiss or migmatitic amphibolite

Band ed gneiss; composition likely quartz–feldspar–biotite/amphibole, possibly migmatite

Likely quartz-bearing rock or mineral fragment (Indeterminate; possibly quartz (SiO₂) with iron-oxide staining and darker matrix) — mineral

Likely quartz-bearing rock or mineral fragment

Indeterminate; possibly quartz (SiO₂) with iron-oxide staining and darker matrix

Gneiss (with Quartzite and Mica) (Gneiss) — metamorphic

Gneiss (with Quartzite and Mica)

Gneiss

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

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

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

Milky quartz

Quartz, silicon dioxide (SiO₂)

Likely quartz-bearing rock or mineral fragment (Probable quartz (SiO₂), possibly a weathered pegmatite or chalcedony fragment) — mineral

Likely quartz-bearing rock or mineral fragment

Probable quartz (SiO₂), possibly a weathered pegmatite or chalcedony fragment

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

Milky quartz rough chips

Quartz (silicon dioxide, SiO₂)

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

Milky quartz (likely vein quartz)

Quartz, silicon dioxide (SiO₂)

Banded metamorphic rock, likely gneiss or banded amphibolite (Quartz–feldspar–biotite gneiss or amphibolite; exact identification requires thin-section or mineral tests) — metamorphic

Banded metamorphic rock, likely gneiss or banded amphibolite

Quartz–feldspar–biotite gneiss or amphibolite; exact identification requires thin-section or mineral tests

Fossil-bearing fine-grained sedimentary rock (Likely fossiliferous mudstone or shale; visible feature may be a plant fragment, trace fossil, or mineral vein) — fossil

Fossil-bearing fine-grained sedimentary rock

Likely fossiliferous mudstone or shale; visible feature may be a plant fragment, trace fossil, or mineral vein

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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

Apatite

Fluorapatite (Ca5(PO4)3F)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Magnetite Ore (Magnetite (Fe3O4)) — mineral

Magnetite Ore

Magnetite (Fe3O4)

Pegmatite with Tourmaline and Quartz (Igneous Pegmatite) — igneous

Pegmatite with Tourmaline and Quartz

Igneous Pegmatite

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

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

Magnetite (Iron(II,III) oxide (Fe3O4)) — mineral

Magnetite

Iron(II,III) oxide (Fe3O4)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Basalt (Basalt) — Igneous

Basalt

Basalt

Magnetite Sand (Black Sand) (Magnetite (Fe3O4)) — mineral

Magnetite Sand (Black Sand)

Magnetite (Fe3O4)

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

Blue Apatite

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

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

Blue Apatite

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

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Granite with Epidote (Granite, containing quartz, feldspar, and epidote) — Igneous

Granite with Epidote

Granite, containing quartz, feldspar, and epidote

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Magnetite (potentially Hematite) (Magnetite (Fe₃O₄)) — mineral

Magnetite (potentially Hematite)

Magnetite (Fe₃O₄)

Granite (Granite) — igneous

Granite

Granite

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Amygdaloidal Basalt with Quartz Veining (Basalt (Extrusive Igneous Rock) with Quartz (SiO2) veining) — igneous

Amygdaloidal Basalt with Quartz Veining

Basalt (Extrusive Igneous Rock) with Quartz (SiO2) veining

Pegmatite (Igneous Pegmatite) — igneous

Pegmatite

Igneous Pegmatite

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

Apatite

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

Pyrite or Chalcopyrite specimen (Gold-colored mineral coating) (Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)) — mineral

Pyrite or Chalcopyrite specimen (Gold-colored mineral coating)

Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)