Rock Identifier

Category

Sedimentary To Metamorphic

Browse sedimentary to metamorphic specimens identified by the Rock Identifier community.

Learn about Sedimentary To Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Ironstone

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Red Jasper (Red Jasper (SiO2)) — sedimentary

Red Jasper

Red Jasper (SiO2)

Likely mica-rich metamorphic rock (schist) (Mica schist, probably biotite–muscovite schist; exact identification requires closer examination) — metamorphic

Likely mica-rich metamorphic rock (schist)

Mica schist, probably biotite–muscovite schist; exact identification requires closer examination

Banded gneiss (likely weathered orthogneiss) (Gneiss; predominantly quartz–feldspar–mica, with possible iron-oxide staining) — metamorphic

Banded gneiss (likely weathered orthogneiss)

Gneiss; predominantly quartz–feldspar–mica, with possible iron-oxide staining

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

Banded gneiss cobble

Gneiss, commonly quartz–feldspar–biotite gneiss

Weathered layered metamorphic rock, likely schist or phyllite (Micaceous quartz–feldspar schist/phyllite; exact identification requires a fresh surface and testing) — metamorphic

Weathered layered metamorphic rock, likely schist or phyllite

Micaceous quartz–feldspar schist/phyllite; exact identification requires a fresh surface and testing

Slate (Foliated Metamorphic Rock (Mainly composed of Quartz, Illite, Chlorite)) — metamorphic

Slate

Foliated Metamorphic Rock (Mainly composed of Quartz, Illite, Chlorite)

Pyrite Cubes in Matrix (Iron Disulfide (FeS2) in Host Matrix) — mineral side rock

Pyrite Cubes in Matrix

Iron Disulfide (FeS2) in Host Matrix

mineral side rock

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Gneiss (specifically Granitic Gneiss) (Gneissic Metamorphic Rock) — metamorphic

Gneiss (specifically Granitic Gneiss)

Gneissic Metamorphic Rock

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

Garnet Schist

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

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Gneiss (Gneiss (Metamorphic rock)) — metamorphic

Gneiss

Gneiss (Metamorphic rock)

Slate (Slate (Metamorphic Rock)) — metamorphic

Slate

Slate (Metamorphic Rock)

Gneiss (Foliated Metamorphic Rock) — metamorphic

Gneiss

Foliated Metamorphic Rock

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Rhodonite (Rhodonite (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Green Kyanite (Kyanite (Al2SiO5)) — mineral

Green Kyanite

Kyanite (Al2SiO5)

Magnetite with Quartz (Magnetite (Fe3O4)) — mineral

Magnetite with Quartz

Magnetite (Fe3O4)

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

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

Likely rough quartz with iron-oxide staining (Quartz (SiO₂), possibly with iron-oxide inclusions or surface staining) — mineral

Likely rough quartz with iron-oxide staining

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

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Rough amber-colored quartz or calcite fragment (Likely quartz (SiO₂) or calcite (CaCO₃); exact identification requires testing) — mineral

Rough amber-colored quartz or calcite fragment

Likely quartz (SiO₂) or calcite (CaCO₃); exact identification requires testing

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

Quartz with Iron Oxide Staining

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz Point

Silicon Dioxide (SiO2)

Quartz (Small Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon dioxide (SiO2)) — mineral

Smoky Quartz

Silicon dioxide (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Quartz with Iron Inclusions (SiO2) — mineral

Quartz with Iron Inclusions

SiO2

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

Milky Quartz/White Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Pebble (Quartz (SiO2)) — sedimentary

Quartz Pebble

Quartz (SiO2)

Pyrite in Matrix (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix

Iron Sulfide (FeS2)

Quartz River Rock (Silicon Dioxide (SiO2)) — mineral

Quartz River Rock

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)