Metamorphic Rock (Variety Of Quartz)

Yellow Quartzite

Metamorphosed Quartz (SiO2)

Quartzite

Quartzite (composed primarily of Quartz, SiO2)

Chert (Chalcedony/Flint)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Yellow Quartzite (Tumbled)

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Iron-Stained Quartzite

Recrystallized Quartz (SiO2) with Ferruginous Oxides

Yellow Quartzite (River Pebble)

Quartzite (primarily Silicon Dioxide, SiO2)

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) with varying mineral impurities

Red Quartzite

Metamorphic Rock (rich in SiO2 with hematite inclusions)

Quartzite Pebble

Quartzite (primarily SiO2)

Aventurine Quartz

Silicon Dioxide (SiO2) with inclusions (typically Fuchsite/Mica)

Gneiss (High-Grade Metamorphic Rock)

Gneiss (primarily composed of Quartz, Feldspar, and Mica/Amphiboles)

Jasper with Quartz Veining

Silicon Dioxide (SiO2) with Hematite impurities

Granite

Granite (a felsic intrusive igneous rock)

Green Aventurine

Tectosilicate, variety of Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Blue Quartzite

Quartzite with Dumortierite or Magnesio-riebeckite inclusions (SiO2)

Pegmatite (likely Granitic Pegmatite)

Pegmatite (a coarse-grained igneous rock, often with granitic composition)

Mica Schist with Quartz

Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)

Orthoclase Feldspar with Quartz

Orthoclase (KAlSi3O8)

Amethyst (Chevron Amethyst)

Amethystine Quartz (SiO2)

Gneiss (Metamorphic Rock)

Gneiss (high-grade regional metamorphic rock)

Fuchsite in Quartz

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartz (SiO2)

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Green Aventurine

Silicon dioxide (SiO2) with fuchsite inclusions

Green Aventurine

Silicon Dioxide (SiO2) with inclusions

Quartzite

Quartzite (Mainly SiO2)

Serpentinite

Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)

Quartzite (with Mica/Feldspar)

Metamorphic Quartzite (SiO2 predominantly)

Rose Quartz

Silicon Dioxide (SiO2) with trace titanium, iron, or manganese

Quartz (Milky/Chalcedony variety)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Quartzite (Potentially Ferruginous)

Quartzite (SiO2)

Granite Pebble

Granite (Felsic Plutonic Rock)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Pink Granite

Pink Granite (Felsic Intrusive Igneous Rock)

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Tiger Diamond / Hematite-infused Quartzite

Silicified Hematite-Rich Quartzite (SiO2 + Fe2O3)