Rock Identifier

Category

Metamorphic Mineral

Browse metamorphic mineral specimens identified by the Rock Identifier community.

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartz (Druzy) in host rock (SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)) — Mineral

Quartz (Druzy) in host rock

SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)

Garnet Rhyolite (Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet) — igneous

Garnet Rhyolite

Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Yellow Quartzite (Quartzite (SiO2 with iron oxide inclusions)) — metamorphic

Yellow Quartzite

Quartzite (SiO2 with iron oxide inclusions)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Red Quartzite (Quartzite (SiO2 with iron oxide impurities)) — metamorphic

Red Quartzite

Quartzite (SiO2 with iron oxide impurities)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Greenstone / Chert (Cryptocrystalline Quartz (SiO2) or Altered Basalt) — sedimentary or metamorphic

Greenstone / Chert

Cryptocrystalline Quartz (SiO2) or Altered Basalt

sedimentary or metamorphic

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Unakite (Tumbled) (Unakite (altered granite)) — metamorphic

Unakite (Tumbled)

Unakite (altered granite)

Marble (Fire and Ice or Pink Veined) (Metamorphosed Limestone (principally CaCO3)) — metamorphic

Marble (Fire and Ice or Pink Veined)

Metamorphosed Limestone (principally CaCO3)

Green Quartzite (or Aventurine) (SiO2 (Silicon Dioxide) primarily, with Fuchsite inclusions (K(Al,Cr)2AlSi3O10(OH)2)) — metamorphic

Green Quartzite (or Aventurine)

SiO2 (Silicon Dioxide) primarily, with Fuchsite inclusions (K(Al,Cr)2AlSi3O10(OH)2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Tiger's Eye and Carnelian Quartz (Silicon Dioxide (SiO2)) — metamorphic and mineral

Tiger's Eye and Carnelian Quartz

Silicon Dioxide (SiO2)

metamorphic and mineral

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Green Quartzite (Aventurine variety) (Silicon Dioxide (SiO2) with inclusions of Fuchsite) — metamorphic

Green Quartzite (Aventurine variety)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Jade (Nephrite and Jadeite) (Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6) — metamorphic

Jade (Nephrite and Jadeite)

Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6

Nephrite Jade (Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)) — metamorphic

Nephrite Jade

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Dumortierite Quartz (Dumortierite (Al7BO3(SiO4)3O3) in Quartz (SiO2)) — metamorphic

Dumortierite Quartz

Dumortierite (Al7BO3(SiO4)3O3) in Quartz (SiO2)

Serpentine (Serpentine-group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentine

Serpentine-group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Jadeite (variety of Jade) (Jadeite, NaAlSi₂O₆) — metamorphic

Jadeite (variety of Jade)

Jadeite, NaAlSi₂O₆

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Slate

Foliated Metamorphic Rock (composed mainly of Quartz, Illite, and Chlorite)

Anthracite Coal (Anthracite (Carbon-based metamorphic rock, 86-97% C)) — metamorphic

Anthracite Coal

Anthracite (Carbon-based metamorphic rock, 86-97% C)

Wishing Stone with Quartz Veins (Quartzite or Quartz-veined Metamorphic Rock (composed mainly of SiO2)) — metamorphic

Wishing Stone with Quartz Veins

Quartzite or Quartz-veined Metamorphic Rock (composed mainly of SiO2)

Lapis Lazuli (in Matrix) (Na8[Al6Si6O24]S2 (Lazurite as the primary component)) — metamorphic

Lapis Lazuli (in Matrix)

Na8[Al6Si6O24]S2 (Lazurite as the primary component)

Ferruginous Quartzite (Iron-stained Quartzite) (Quartzite with Iron oxides (FeO(OH) / Fe2O3)) — metamorphic

Ferruginous Quartzite (Iron-stained Quartzite)

Quartzite with Iron oxides (FeO(OH) / Fe2O3)

Quartzite (Quartzite (Mainly SiO2)) — metamorphic

Quartzite

Quartzite (Mainly SiO2)

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

Garnet-bearing Schist

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

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Dyed Agate (Silicon Dioxide with artificial pigment (SiO2)) — sedimentary

Dyed Agate

Silicon Dioxide with artificial pigment (SiO2)

Muscovite on Quartz (Mica host rock) (KAl2(AlSi3O10)(OH)2 (Muscovite) in SiO2 (Quartz)) — igneous/metamorphic

Muscovite on Quartz (Mica host rock)

KAl2(AlSi3O10)(OH)2 (Muscovite) in SiO2 (Quartz)

igneous/metamorphic

Yellow Aventurine (Silicon Dioxide (Quartz) with inclusions (SiO2)) — Metamorphic rock

Yellow Aventurine

Silicon Dioxide (Quartz) with inclusions (SiO2)

Metamorphic rock

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions