White Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
White Quartz
Silicon Dioxide (SiO2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Fuchsite (Chrome Mica)
Cr-bearing Muscovite - K(Al,Cr)2(AlSi3O10)(OH)2
Garnet
Almandine (Fe3Al2(SiO4)3)
Quartz
Silicon dioxide (SiO2)
Gneiss
Gneiss
Greenstone
Metamorphosed Mafic Igneous Rock
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Gneiss
Gneiss
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Green Quartz / Prasiolite
Silicon Dioxide (SiO2)
Aventurine
Quartz (SiO2) with Fuchsite inclusions
Tiger's Eye (Inlaid in a band)
SiO2 (Silicon Dioxide with Crocidolite inclusions)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Quartz Pebble (Grit)
Silicon Dioxide (SiO2)
Almandine Garnet
Almandine - Fe3Al2(SiO4)3
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Slate
Metamorphic Pelitic Rock
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Quartzite Pebble
Metamorphic Quartz-rich Rock (SiO2)
Banded gneiss (likely amphibolite-rich gneiss)
Banded gneiss; composition commonly quartz, feldspar, mica and/or amphibole
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Serpentine (Serpentinite)
Hydrous magnesium iron silicate, (Mg,Fe)3Si2O5(OH)4
Slate
Foliated Metamorphic Rock
Banded Gneiss
Gneiss (Metamorphic Rock)
Slate
Foliated Metamorphic Rock
Slate
Foliated metamorphic rock
Clear quartz crystal
Quartz (silicon dioxide, SiO₂)
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Slate
Slate (Metamorphic silicate rock)
Slate
Slate (Foliated metamorphic rock)
Epidosite (Epidote-Quartz rock)
Epidote-rich hydrothermal rock
Tumbled White Quartz
Silicon Dioxide (SiO2)
Garnet in Quartzite
Garnet-bearing Quartzite (SiO2 + X3Y2(SiO4)3)
Quartz Pebble
Silicon Dioxide (SiO2)