Quartzite
Quartzite (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (SiO2)
Quartzite (or Quartz Rich Conglomerate)
Quartzite (SiO2 silicon dioxide)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (SiO2)
Ferruginous Quartzite (Red Quartz)
Quartzite (SiO2 with Hematite/Iron impurities)
Gneiss
Metamorphic Gneiss
Granodiorite (Gneissic texture)
Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)
Quartzite
Quartzite (Silicon Dioxide: SiO2)
Green Aventurine
Aventurine (a variety of Quartz, SiO2)
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Quartzite
Quartzite (SiO2)
Quartzite Cobble
Metamorphosed Quartz Sandstone
Quartzite (Sugar Quartz)
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
Quartzite (Iron-stained)
Quartzite (mostly SiO2 with Fe2O3 impurities)
Quartzite
Quartzite (primarily SiO2)
Pink Quartzite
Quartzite (SiO2)
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
Quartzite pebble
Metamorphic rock (mainly SiO2)
Quartzite (Ferruginous)
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)
Serpentine
Serpentine Group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Quartzite Pebble
Recrystallized Quartz (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pink Granite
Felsic intrusive igneous rock
Banded Gneiss
Gneiss (typically quartz, feldspar, mica, amphibole composition)
Green Agate
Silicon Dioxide (SiO2) - Chalcedony variety
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Quartzite River Cobble
Quartzite (SiO2)
Red Tiger's Eye beads
Tiger's Eye (variety of Chalcedony, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Banded Agate (Carnelian variety)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine Quartz variety / Ferruginous Quartz)
Silicon Dioxide (SiO2) with iron inclusions
Aquamarine and clear quartz
Aquamarine (Be3Al2Si6O18), Quartz (SiO2)
Pegmatite with Black Tourmaline
Granitic Pegmatite with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)