Quartzite
Quartzite (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (SiO2)
Quartzite with Iron Inclusions
Quartzite (SiO2) with Hematite/Limonite
Quartzite
Quartzite (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Greenstone / Graywacke
Metagraywacke or Chlorite Schist
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (SiO2: Silicon Dioxide)
Chert / Flint
Microcrystalline Quartz (SiO2)
Dumortierite Quartz
Dumortierite-bearing Quartz (Al7BO3(SiO4)3O3)
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
Quartzite (River Stone)
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Quartzite
Quartzite (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Pink Gneiss / Pink Granite Gneiss
Felsic Gneiss (dominated by Orthoclase Feldspar and Quartz)
Chert (River Pebble)
Microcrystalline quartz (SiO2)
Gold Ore
Native Gold (Au) in Matrix
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Quartzite with inclusions
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Granitic Pegmatite Intrusion in Host Rock
Pegmatite dike in amphibolite or schist
Serpentinite with Quartz/Calcite Veining
Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Sandstone (Water-worn Pebble)
Clastic Sedimentary Rock (primarily SiO2)
Dyed Agate
SiO2 (Silicon Dioxide)
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Mica Schist
Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)
Conglomerate
Conglomerate (Detrital sedimentary rock)
Auriferous Quartz or Pyritic Ore
Iron Pyrite (FeS2) or Native Gold (Au) in Matrix
Pink Granite
Phaneritic intrusive felsic igneous rock
River Quartzite / Tumble-Polished Quartz
Quartzite (SiO2)
River Pebble (likely Quartzite or Chert)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Chert (White/Light Tan)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)