Garnet (Almandine)
Almandine, Fe3Al2(SiO4)3
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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Mica (Biotite or Phlogopite Buchsam)
Silicate Mineral (Phyllosilicate family)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
mineral
Garnet
Almandine/Pyrope Garnet (Silicate Mineral Group)
mineral
Mica Schist
Muscovite Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Biotite schist (probable mica schist)
Mica schist; chiefly quartz, biotite mica, and feldspar
metamorphic
Gneiss (Metamorphic Rock)
Gneiss
metamorphic
Schist
Mica Schist (Metamorphic rock)
metamorphic
Feldspathic Gneiss
High-grade Metamorphic Rock (Gneiss)
metamorphic
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Biotite (Black Mica)
Biotite (K(Mg,Fe++)3AlSi3O10(OH,F)2)
mineral
Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
mineral
Granite Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2
mineral
Gneiss (with Mica and Quartz)
Gneissic Metamorphic Rock
metamorphic
Muscovite mica
Muscovite, KAl₂(AlSi₃O₁₀)(OH)₂
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Garnet (likely Almandine or Pyrope)
Garnet Group, Nesosilicates (Complex chemistry, e.g., Almandine: Fe3Al2Si3O12)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Schist
Mica Schist
metamorphic
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)
mineral
Biotite Mica in Quartz
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)
mineral
Biotite Schist
Biotite Gneissic Schist (K(Mg,Fe)3AlSi3O10(OH)2)
metamorphic
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Schist
Schist (metamorphic rock)
metamorphic
Mica Schist with Iron Staining
Muscovite/Biotite Schist
metamorphic
Schist
Mica Schist (Composition typically involves Muscovite, Biotite, Quartz, and Feldspar)
metamorphic
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
metamorphic
Quartzite Cobble
Metamorphosed Quartz Sandstone (primarily SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Mica Schist
Metamorphic rock dominated by micas (muscovite, biotite)
metamorphic
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Mica (Muscovite)
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Mica Schist
Mica Schist (Complex Silicate Rock)
metamorphic
Micaceous Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
metamorphic
Almandine Garnet in Matrix
Almandine (Fe3Al2(SiO4)3)
metamorphic