Mica Schist
Mica Schist (Quartz-Mica Schist)
metamorphic
Category
Metamorphic (Modified)
Browse metamorphic (modified) specimens identified by the Rock Identifier community.
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Quartzite
Quartzite
metamorphic
Quartzite
Quartzite
metamorphic
Fuchsite
Cr-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
mineral
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide Fluoride (KAl2(AlSi3O10)(F,OH)2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Likely gneiss pebble
Foliated quartz–feldspar gneiss, with dark biotite or amphibole
metamorphic
Amphibolite
Amphibolite, composed mainly of amphibole and plagioclase feldspar
metamorphic
Tumbled limestone or marble
Calcite-rich carbonate rock; likely limestone (CaCO₃), possibly marble
metamorphic
Mica-rich schist (probable)
Mica schist, composed mainly of mica minerals with quartz and possibly feldspar
metamorphic
Weathered garnet-bearing rock (possibly garnet schist)
Garnet-bearing mica schist; likely almandine garnet (Fe₃Al₂(SiO₄)₃) with mica and quartz
metamorphic
Small banded metamorphic rock fragment
Indeterminate foliated metamorphic rock; possibly mica schist or gneiss
metamorphic
Likely mica-rich schist (possibly phyllite)
Muscovite–biotite schist; exact identification requires examination of a fresh surface
metamorphic
Gneiss
Foliated quartz–feldspar gneiss, likely biotite-bearing
metamorphic
Banded amphibolite (hornblende schist)
Amphibolite, chiefly hornblende + plagioclase feldspar, commonly with biotite and quartz
metamorphic
Foliated mica-rich metamorphic rock, likely schist
Muscovite–biotite schist, possibly garnet-bearing
metamorphic
Gneiss with Quartz Vein
Metamorphic Gneiss with Quartz (SiO2) and Feldspar Injection
metamorphic
Basalt Pebble
Extrusive Igneous Rock
igneous
Sapphirine in Matrix
Sapphirine (Mg,Al)8(Al,Si)6O20
mineral
Biotite Schist
Biotite Schist (predominantly K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic
Garnet-bearing metamorphic rock, likely mica schist
Biotite–garnet schist; commonly includes quartz, feldspar, biotite, and almandine garnet
metamorphic
Quartzite with Mafic Intrusion (Gneiss/Schist Contact)
Metamorphic Quartzite (SiO2) with Amphibole/Biotite Schist
metamorphic
River Pebble (Gneiss or Quartzite mixture)
Metamorphic rock (Commonly Gneissic)
metamorphic
Garnet (Almandine-Pyrope)
Almandine-Pyrope Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3
mineral
Schist
Schist (Foliated Metamorphic Rock)
metamorphic
Tumbled jadeite or nephrite jade bead bracelet
Jade: jadeite (NaAlSi₂O₆) or nephrite, a tremolite–actinolite amphibole aggregate
gemstone
Fuchsite
Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Mineral
Green Schist (Greenschist)
Greenschist facies metamorphic rock
metamorphic
Green Slate or Metamorphic Rock with Moss/Lichen
Metamorphic rock / Phyllite or Slate variant
metamorphic
Calcite
Calcium carbonate (CaCO3)
mineral
Feldspar
Feldspar (Orthoclase/Microcline)
mineral
Pyrite Nodules / Weathered Pyrite
Iron Sulfide (FeS2)
mineral
Pink Quartz
Silicon Dioxide (SiO2)
mineral
Jadeite Jade
NaAl(Si2O6)
gemstone
Pink Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Beryl
Beryl (Be3Al2(SiO3)6)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral