Schist
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.
Learn about Metamorphic (Likely Gneiss Or Schist Based On Texture) in the encyclopedia
View all →
Muscovite (Mica)
Muscovite - KAl2(AlSi3O10)(OH)2
Mineral
Gneiss (High-Grade Metamorphic Rock)
Gneiss (primarily composed of Quartz, Feldspar, and Mica/Amphiboles)
metamorphic
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
mineral
Mica
Muscovite / Biotite (Phyllosilicate group)
mineral
Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
mineral
Mica Schist
Mica Schist (predominantly Muscovite/Biotite)
metamorphic
Muscovite Mica
Muscovite KAl2(AlSi3O10)(OH)2
mineral
River Pebble (Gneiss/Schist mix)
Metamorphic rock aggregate
metamorphic
Schist
Mica Schist
metamorphic
Fuchsite (Green Muscovite in Quartz)
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Banded Gneiss
Gneiss
Metamorphic
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Mica Schist
Schist (muscovite-quartz dominant)
metamorphic
Dumortierite Quartz
Dumortierite (Al7BCuO15)
metamorphic
Sapphire
Corundum (Al2O3)
gemstone
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Gneiss
Gneiss
metamorphic
Banded Gneiss with Quartz Veining
Gneiss (High-grade Regional Metamorphism)
metamorphic
Mica Schist
Mica Schist (primarily Muscovite and Biotite composition)
metamorphic
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Gneiss
Gneiss
metamorphic
Biotite on Quartz
Biotite Mica (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Garnet
Nesosilicate group (e.g., Almandine: Fe3Al2(SiO4)3)
mineral
Fuchsite with Ruby
Cr-rich Muscovite with Corundum (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Biotite mica schist (probable)
Mica schist, dominated by biotite mica (K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂) with quartz and feldspar
metamorphic
Weathered, quartz-rich metamorphic rock (likely schist or gneiss)
Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining
metamorphic
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheets with Quartz)
metamorphic
Mica schist
Schist (rich in Muscovite or Biotite mica)
metamorphic
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Schist (Graphite or Mica rich)
Crystalline Schist (often containing Muscovite, Biotite, or Graphite)
metamorphic
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Garnet
Pyrope or Almandine (X3Y2(SiO4)3)
mineral
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
mineral
Muscovite (Mica)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Mica / Muscovite or Biotite
Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)
mineral
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
mineral
Garnet in Schist or Pegmatite
Almandine Garnet (Fe3Al2(SiO4)3) in host rock
metamorphic
Gneiss (or Granite Gneiss)
Metamorphic rock rich in quartz, feldspar, and biotite/amphibole
metamorphic