Quartzite
Metamorphic Quartz Rock (SiO2)
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Quartzite
Metamorphic Quartz Rock (SiO2)
Quartzite
Metamorphic Quartz Rock (SiO2)
Quartzite
Metamorphic Quartz Rock (SiO2)
Quartzite Pebble
Metamorphic Quartz-rich Rock
Quartzite
Metamorphic Quartz Rock (SiO2)
Quartzite
Metamorphic Quartz Rock (SiO2)
Quartzite
Metamorphic Quartz-rich Rock
Slate
Slate (Foliated Metamorphic Rock)
Slate
Slate (Foliated Metamorphic Rock)
Slate
Foliated metamorphic rock (Slate)
Yellow Quartzite
Metamorphic Rock (Mainly SiO2)
Lapis Lazuli
Lazurite-rich metamorphic rock
Mica Schist
Foliated Metamorphic Rock (Schist)
Slate
Slate (Foliated Metamorphic Rock)
Mica Schist
Foliated Metamorphic Rock (Schist)
Quartzite with Quartz Veining
Metamorphic Quartz Rock (SiO2)
Lapis Lazuli (Fragment)
Lazurite-rich metamorphic rock
Gneiss
Gneiss (foliated metamorphic rock)
Slate
Low-grade Metamorphic Rock
Yellow Quartzite (Beach Pebble)
Quartzite (primarily SiO2)
Lapis Lazuli
Complex silicate rock containing lazurite, calcite, and pyrite
Quartzite Pebble (with Iron Inclusions)
Quartzite (primarily SiO2 with Fe2O3/FeOOH impurities)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Wishing Rock (Quartz Vein in Host Rock)
Silicon dioxide (SiO2) vein in various host rocks
Unakite (polished/tumbled)
Unakite, a hydrothermally altered granite composed mainly of epidote, pink potassium feldspar (orthoclase/microcline), and quartz
Rhodonite
Manganese Silicate (Mn, Fe, Mg, Ca)SiO3
Unakite
Epidote–K-feldspar–quartz granitoid (often called unakite)
Yellow Quartzite (River Pebble)
Quartzite (primarily SiO2)
Black Marble
Recrystallized Carbonate Rock (CaCO3)
Jasper and Greenstone Pebble
Siliceous rock / Metamorphic pebble
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
Quartzite
Quartzite (SiO2)
Agate
Silicon Dioxide (Chalcedony), SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide (Chalcedony), SiO2
Glacial granite/granitoid boulder
Granite to granodiorite; chiefly quartz, feldspar, and biotite/hornblende
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Greenstone
Metabasalt (composed of chlorite, epidote, and actinolite)
Schist
Mica Schist
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)