![Schist (Mica Schist (formula variable based on mineral content, typically containing [K,Al,Fe,Mg,Si,O,H])) — metamorphic](https://media.rockidentification.com/82921e91-3bee-4a52-8b94-97f62233f834-thumbnail.jpg)
Schist
Mica Schist (formula variable based on mineral content, typically containing [K,Al,Fe,Mg,Si,O,H])
metamorphic
Category
Metamorphic (Low Grade)
Browse metamorphic (low grade) specimens identified by the Rock Identifier community.
Learn about Metamorphic (Low Grade) in the encyclopedia
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Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Limonitic Iron Ore / Goethite
Hydrated Iron(III) oxide-hydroxide (primarily FeO(OH)·nH2O)
sedimentary
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Muscovite Mica (Granitic Pegmatite)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Yellow Quartzite (River Pebble)
Quartzite (mainly SiO2 with iron oxide impurities)
metamorphic
Schist
Mica Schist
metamorphic
Schist
Mica Schist
metamorphic
Granite Gneiss
High-grade regional metamorphic rock (Quartz-Feldspar Gneiss)
metamorphic
Serpentine
Serpentine-group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)
metamorphic
Serpentine
Antigorite / Lizardite / Chrysotile mix; (Mg, Fe)3Si2O5(OH)4
metamorphic
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Quartzite (River Pebble)
Metamorphic Quartzite (SiO2)
metamorphic
Greenschist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
metamorphic
Schist
Schist
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Granite Gneiss
Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)
metamorphic
Anthracite Coal
Anthracite (Carbon Content: 86%–98%)
metamorphic
Gneiss
Gneiss (Metamorphic rock composed primarily of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
metamorphic
Gneiss (with Quartz and Biotite Mica)
Gneiss
metamorphic
Muscovite Mica Schist
Muscovite Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Banded Gneiss
Gneiss
metamorphic
Gneiss
Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)
metamorphic
Garnet Gneiss
Gneiss containing almandine-pyrope garnet
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Assorted Semi-Precious Gemstone Crosses
Quartz, Silicates, Carbonates (various)
mineral
Green Quartzite
Quartzite (SiO2 with chlorite/epidote inclusions)
metamorphic
Jade (specifically Nephrite or Jadeite beads)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
metamorphic
Serpentinite
Serpentinite (complex silicate mineral group (Mg,Fe)3Si2O5(OH)4)
metamorphic
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Pumice
Pumicite (Amorphous Volcanic Glass)
igneous
Gneiss
Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)
metamorphic
Gneiss
Foliated Metamorphic Gneiss
metamorphic
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
![Lapis Lazuli (Raw Ore) (Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)) — metamorphic](https://media.rockidentification.com/de49c560-8228-4eb1-8165-e9ac490799d5-thumbnail.jpg)
Lapis Lazuli (Raw Ore)
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)
metamorphic