Mica Schist with Garnet
Garnetiferous 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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Fuchsite
Chromian Muscovite, K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Quartz-rich metamorphic rock, likely garnet-mica schist or gneiss
Quartz–feldspar–mica metamorphic rock; probable biotite schist/gneiss
metamorphic
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Banded gneiss or banded metamorphic rock
Gneiss, likely quartz–feldspar–biotite gneiss
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded gneiss
Gneiss, commonly quartz–feldspar–biotite gneiss
metamorphic
Greenstone / serpentinite-like metamorphic rock
Probable serpentinite-rich greenschist; commonly dominated by serpentine-group minerals, chlorite, actinolite, and magnetite
metamorphic
Gneissic Schist
Foliated Metamorphic Rock (Schist/Gneiss transition)
metamorphic
Weathered quartz-rich metamorphic rock, possibly gneiss or quartzite
Quartz–feldspar–mica metamorphic aggregate; exact identification requires testing
metamorphic
Micaceous schist (likely muscovite schist)
Muscovite–quartz schist; primarily muscovite mica (KAl₂(AlSi₃O₁₀)(OH)₂) with quartz and possibly feldspar
metamorphic
Garnet (specifically Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Garnet and Quartz
Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)
mineral
Metamorphic schist (probable mica schist)
Mica schist, dominated by quartz, feldspar, biotite/muscovite, and possibly garnet
metamorphic
Blue schist (likely glaucophane schist)
Glaucophane schist; chiefly glaucophane amphibole with mica, quartz, and possible lawsonite/epidote
metamorphic
Mica Schist
Mica Schist (contains Muscovite KAl2(AlSi3O10)(OH)2)
metamorphic
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
mineral
Mica Schist
Mica Schist
metamorphic
Corundum (Sapphire / Raw Sapphire)
Aluminum Oxide (Al2O3)
gemstone
Tumbled Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)
mineral
Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH,F)4)
mineral
Garnet
Almandine Garnet (Fe3Al2(SiO4)3)
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Red Garnet
Almandine Garnet (Fe3Al2(SiO4)3)
mineral
Graphite Schist
C (Carbonaceous Schist)
metamorphic
Micaceous schist (likely biotite schist)
Biotite–quartz–feldspar schist; commonly containing muscovite and/or garnet
metamorphic
Foliated metamorphic rock, likely gneiss
Biotite–quartz–feldspar gneiss, possibly migmatitic gneiss
metamorphic
Staurolite
Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)
mineral
Red garnet (likely almandine or pyrope), polished/tumbled
Garnet-group silicate; commonly almandine Fe₃Al₂(SiO₄)₃ or pyrope Mg₃Al₂(SiO₄)₃
gemstone
Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)
mineral
Fairy Stone (Staurolite)
Staurolite (Fe2+2Al9Si4O22(OH)2)
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Foliated mica-rich metamorphic rock, likely schist
Mica schist; predominantly quartz, feldspar, and biotite/muscovite mica
metamorphic
Red garnet cabochon ring
Garnet-group silicate, likely almandine–pyrope solid solution (X₃Y₂(SiO₄)₃)
gemstone
Banded gneiss pebble
Gneiss, commonly quartz–feldspar–mica gneiss
metamorphic
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2 mixed with SiO2)
metamorphic
Gneiss
Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)
metamorphic
Mica (Muscovite)
Muscovite, KAl2(AlSi3O10)(OH)2
Mineral
Quartz-bearing altered rock
Likely quartz vein in weathered schist or gneiss; quartz is SiO₂
metamorphic
Polished banded gneiss or schist pebble
Banded quartz–feldspar–mica gneiss (tentative)
metamorphic
Mica Schist
Mica Schist (composed mainly of Muscovite / Biotite, Quartz, and Feldspar)
metamorphic