Rock Identifier

Category

Metamorphic (Localized) Or Sedimentary

Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.

Learn about Metamorphic (Localized) Or Sedimentary in the encyclopedia

Goldmanite

Oregon Opal

Orendite

Orthoclase

Orca Agate

Orange Opal

Peacock Ore

Orange Garnet

Orange Obsidian

Orange Calcite

Orange Tourmaline

Orange Tourmaline

Oregon Sunstone

Oregon Sunstone

Milky quartz-bearing rock, possibly quartzite (Quartz (SiO₂), likely in a quartzite or quartz-rich vein) — metamorphic

Milky quartz-bearing rock, possibly quartzite

Quartz (SiO₂), likely in a quartzite or quartz-rich vein

Quartz-rich rock, possibly quartzite (Quartzite (dominantly quartz, SiO₂); identification is provisional from the photo) — metamorphic

Quartz-rich rock, possibly quartzite

Quartzite (dominantly quartz, SiO₂); identification is provisional from the photo

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

Magnetite

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

Almandine Garnet in Schist (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Almandine Garnet in Schist

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

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

Magnetite

Fe3O4 (Iron(II,III) oxide)

Blue Kyanite (Kyanite (Al2SiO5)) — metamorphic

Blue Kyanite

Kyanite (Al2SiO5)

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

Milky quartz

Quartz (silicon dioxide, SiO₂)

Quartz vein in host rock (Quartz (SiO₂), likely milky quartz; host rock is uncertain from the photo) — metamorphic

Quartz vein in host rock

Quartz (SiO₂), likely milky quartz; host rock is uncertain from the photo

Banded gneiss (Quartz–feldspar–biotite gneiss (exact minerals uncertain from the photo)) — metamorphic

Banded gneiss

Quartz–feldspar–biotite gneiss (exact minerals uncertain from the photo)

Likely weathered limestone or marble fragment (Calcite-rich carbonate rock; likely limestone (CaCO₃), possibly recrystallized marble) — sedimentary

Likely weathered limestone or marble fragment

Calcite-rich carbonate rock; likely limestone (CaCO₃), possibly recrystallized marble

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

White Quartz (Milky Quartz)

Quartz (Silicon Dioxide - SiO2)

Gold-colored mineral specimen, likely pyrite or weathered mica schist (Tentatively pyrite (FeS₂); identification is uncertain from the obscured image) — mineral

Gold-colored mineral specimen, likely pyrite or weathered mica schist

Tentatively pyrite (FeS₂); identification is uncertain from the obscured image

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

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

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

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

Magnetite

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

Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Garnet

Almandine (Fe3Al2(SiO4)3)

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

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Schist (containing Muscovite Mica and Chlorite) (Mica Schist) — metamorphic

Schist (containing Muscovite Mica and Chlorite)

Mica Schist

Garnet Schist (Almandine-mica schist) — metamorphic

Garnet Schist

Almandine-mica schist

Magnetite-rich ironstone (Magnetite, Fe₃O₄, likely in a dense ironstone matrix) — mineral

Magnetite-rich ironstone

Magnetite, Fe₃O₄, likely in a dense ironstone matrix

Garnet Schist (Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)) — metamorphic

Garnet Schist

Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)

Banded gneiss (Gneiss, commonly quartz–feldspar–mica gneiss) — metamorphic

Banded gneiss

Gneiss, commonly quartz–feldspar–mica gneiss

Banded gneiss fragment (Gneiss, likely quartz–feldspar–mica gneiss) — metamorphic

Banded gneiss fragment

Gneiss, likely quartz–feldspar–mica gneiss

Banded gneiss (Gneiss, likely biotite–quartz–feldspar gneiss) — metamorphic

Banded gneiss

Gneiss, likely biotite–quartz–feldspar gneiss

Slate (Slate; predominantly fine-grained phyllosilicates (muscovite/illite, chlorite) with quartz and feldspar) — metamorphic

Slate

Slate; predominantly fine-grained phyllosilicates (muscovite/illite, chlorite) with quartz and feldspar

White quartz bead strand (Quartz, silicon dioxide (SiO₂), likely milky or translucent quartz; beads are polished and drilled) — mineral

White quartz bead strand

Quartz, silicon dioxide (SiO₂), likely milky or translucent quartz; beads are polished and drilled

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Quartz (likely Rose or Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (likely Rose or Milky Quartz)

Silicon Dioxide (SiO2)

Iron-rich sulfide ore (likely pyrite-bearing rock) (Likely pyrite (FeS₂) with dark host rock; exact identification is uncertain from the image alone.) — mineral

Iron-rich sulfide ore (likely pyrite-bearing rock)

Likely pyrite (FeS₂) with dark host rock; exact identification is uncertain from the image alone.

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

Quartz (Quartzite / Iron-stained Quartz)

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Yellow Calcite (Polished) (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite (Polished)

Calcium Carbonate (CaCO3)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Quartz (Smoky/Milky)

Silicon Dioxide (SiO2)

Optical Calcite (Calcium Carbonate (CaCO3)) — mineral

Optical Calcite

Calcium Carbonate (CaCO3)

Golden Calcite (Calcium Carbonate (CaCO3)) — mineral

Golden Calcite

Calcium Carbonate (CaCO3)

Quartz with inclusions (SiO2) — mineral

Quartz with inclusions

SiO2

Anthracite Coal (Anthracite coal (High-rank coal)) — sedimentary

Anthracite Coal

Anthracite coal (High-rank coal)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)