Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Category
Metamorphic (Low Grade)
Browse metamorphic (low grade) specimens identified by the Rock Identifier community.
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Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Phyllite
Phyllite (Foliated metamorphic rock)
metamorphic
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2
mineral
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss (High-Grade Metamorphic Rock)
Gneiss (primarily composed of Quartz, Feldspar, and Mica/Amphiboles)
metamorphic
Schist
Mica Schist
metamorphic
![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
Rough Diamond
Diamond (pure Carbon, C)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Yellow Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Greenschist
Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)
metamorphic
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
metamorphic
Gneiss
Metamorphic rock of high-grade regional metamorphism
metamorphic
Greenschist
Greenschist (Actinolite-Chlorite Schist)
metamorphic
Schist
Mica Schist
metamorphic
Schist
Mica Schist (primarily composed of quartz, feldspar, and mica)
metamorphic
Mica Schist
Muscovite/Biotite Schist
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Schist
Mica Schist
metamorphic
Ironstone Concretion (Limonite/Hematite Nodules)
Ironstone (principally Limonite FeO(OH)·nH2O or Hematite Fe2O3 mixed with silica/clay)
sedimentary
Milky Quartz (Micro-specimen)
Silicon Dioxide (SiO2)
mineral
Ferruginous Sandstone
Arenite with Iron Oxide cement (Fe2O3 / FeO(OH))
sedimentary
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Ferruginous Sandstone (Iron-rich Sandstone)
Ferruginous Arenite
sedimentary
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/054f3fa7-f73a-456a-b566-38d3b6295e69-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Eurasite (or Ferruginous Sandstone)
Ferruginous Sandstone (SiO2 with Fe2O3/FeOOH)
sedimentary
Gemstones (Emerald and Yellow Topaz or Citrine)
Beryl (Be3Al2Si6O18) and Quartz (SiO2) or Topaz (Al2SiO4(F,OH)2)
mineral
Mica Schist
Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Zebra Jasper (usually a trade name for Serpentine or Basalt blend)
Antigorite/Chrysotile (Serpentine family) - Mg3Si2O5(OH)4
metamorphic
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Verde Antique Marble (Serpentinite)
Serpentinite (composed mainly of Serpentine group minerals, Mg3Si2O5(OH)4)
metamorphic
Serpentine
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
Granite Gneiss with Garnet
Garnetiferous Gneiss
metamorphic
Gneiss (High-grade Metamorphic Rock)
Gneiss (Metamorphic silicate rock)
metamorphic
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
metamorphic
Schist with Quartz Vein
Mica Schist with Crystalline Quartz (SiO2)
metamorphic