Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Category
Browse metamorphic and sedimentary specimens identified by the Rock Identifier community.
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Garnet
Garnet Group (e.g., Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3)
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz (with Chlorite/Mineral Inclusions)
Silicon Dioxide (SiO2)
Serpentine
Antigorite-Lizardite-Chrysotile (Mg3Si2O5(OH)4)
Schist
Mica Schist
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Quartzite Pebble
Quartzite (SiO2)
Quartz with Iron Stains
Quartz (SiO2) with iron oxide/hydroxide staining
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
Hypersthene (or Enstatite/Ferrosilite)
Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)
Schist with Biotite and Quartz
Biotite-Quartz Schist (Fe,Mg,Al silicate mix)
Greenstone with Epidote or Quartz veins
Metabasalt (Greenstone facies)
Slate
Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)
Jasper with Epidote (Unakite-related)
Epidotized Quartzite (composed of Quartz, Epidote, and Feldspar)
Milky Quartz in Gneiss
Quartzite / Foliated Gneiss containing SiO2
Quartzite
Quartzite (primarily SiO2)
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Jasper and Epidote (Unakite-like specimen)
Epidotized granite or Jasper with Epidote inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite Cobble
Quartzite (mostly SiO2)
Quartzite
Quartzite (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Blue Quartzite
Quartzite (mostly SiO2 with mineral inclusions)
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
Schist
Mica Schist
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Schist
Mica Schist (Medium-grade metamorphic rock)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite pebble
Quartzite (primarily SiO2)
Quartzite (Iron-stained)
Quartzite (SiO2 with iron oxides)