Mica Schist
Mica Schist (Quartz-Mica Schist)
metamorphic
Category
Metamorphic (Likely Gneiss Or Schist Based On Texture)
Browse metamorphic (likely gneiss or schist based on texture) specimens identified by the Rock Identifier community.
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Staurolite (Fairy Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Staurolite
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
metamorphic
Greenstone (likely serpentinite or chlorite-rich metamorphic rock)
Probable serpentinite/chlorite schist; commonly dominated by serpentine-group minerals, chlorite, talc, and magnetite
metamorphic
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Black Kyanite
Aluminum Silicate (Al2SiO5)
mineral
Garnet (specifically Almandine or Pyrope)
Almandine: Fe3Al2(SiO4)3 or Pyrope: Mg3Al2(SiO4)3
mineral
Almandine Garnet
Fe3Al2(SiO4)3
mineral
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Mineral
Banded River Pebble (Gneiss or Quartz-Veined Basalt)
Polished River Siltstone or Quartzite Gneiss
metamorphic
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
gemstone
Amazonite
Microcline (KAlSi3O8) with trace lead (Pb)
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Mineral
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Schist (Micaceous Schist)
Micaceous schist (Mainly Muscovite/Biotite mixed with Quartz)
metamorphic
Likely foliated metamorphic rock, possibly schist
Mica schist or micaceous quartzite; exact identification is uncertain from the photograph
metamorphic
Staurolite (Cross Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Tumbled gray-green metamorphic rock, likely serpentinite or chlorite schist
Serpentinite/chlorite-rich ultramafic metamorphic rock; commonly dominated by antigorite, lizardite, or chlorite with minor magnetite and talc
metamorphic
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
![Mica Schist (Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)) — metamorphic](https://media.rockidentification.com/cde02de2-2d7b-4875-a7ad-bd7d41ea40c0-thumbnail.jpg)
Mica Schist
Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)
metamorphic
Banded Gneiss
Gneiss
metamorphic
Schist (Garnet-Mica Schist)
Garnetiferous Mica Schist (primarily Muscovite/Biotite and Almandine Garnet)
metamorphic
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3(AlSi3O10)(OH)2)
metamorphic
Garnet (Almandine variety)
Almandine Garnet (Fe3Al2(SiO4)3)
mineral
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
Mica Schist with Quartz
Schist containing Muscovite and Quartz
metamorphic
Muscovite Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 matrix)
metamorphic
Banded Gneiss
Gneiss (Metamorphic rock)
metamorphic
Gneiss (Granulite / Foliated Metamorphic Rock)
Gneiss
metamorphic
Banded Gneiss
Banded Gneiss (High-grade Metamorphic Rock)
metamorphic
Limestone (River or Sea Cobble)
Calcium Carbonate (CaCO3)
sedimentary
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Biotite Schist
Schist (Biotite-dominated)
metamorphic
Gneiss
Gneiss
metamorphic
Fuchsite
Muscovite (chromium-rich), K(Al,Cr)2(AlSi3O10)(OH)2
metamorphic
Mica
Mica group (often Muscovite or Biotite)
mineral
Likely dark green-gray metamorphic pebble
Indeterminate; possibly chlorite schist, serpentinite, or amphibolite
metamorphic
Mica Schist with Quartz and Muscovite
Muscovite-Quartz Schist
metamorphic