Quartzite with Quartz Veins
Quartzite (chiefly SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartzite with Quartz Veins
Quartzite (chiefly SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Wishing Stone (Gneiss or Basalt with Quartz Vein)
Gneiss or Metabasalt (with a Quartz or Calcite intrusion)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Green Aventurine (Green Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Smoky Quartz
Silicon Dioxide (SiO2)
Aventurine
Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)
Quartzite
Quartzite (SiO2)
Quartzite with Iron Mineral Banding
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) staining
Gneiss
Gneiss (High-grade metamorphic rock)
Red Jasper
Jasper (Silicon Dioxide) - SiO2
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Unakite (or Epidote-rich Granite)
Unakite (composed of Epidote {Ca2(Al, Fe)3(SiO4)3(OH)}, Pink Orthoclase Feldspar {KAlSi3O8}, and Quartz {SiO2})
Citrine
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
Quartzite
Quartzite (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Aventurine (a variety of Quartz, SiO2)
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
Banded Chert
Chert (a microcrystalline variety of quartz, SiO2 with minor impurities)
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide (SiO2) with iron oxide and other mineral impurities
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Banded Agate (Carnelian variety)
Cryptocrystalline Quartz (SiO2)
Gneiss (specifically a weathered or stream-worn specimen)
Gneiss (Foliated Metamorphic Rock)
Granodiorite
Granodiorite (Intermediate to Felsic Intrusive Rock)
Jasper
Jasper (Silicon Dioxide, SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Tiger's Eye (Multicolor/Variegated)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)
Garnet Schist
Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)
Quartzite
Quartzite (primarily SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Unakite
Epidotized Granite
Wishing Stone
Greenschist or Basalt with Quartz/Calcite Vein
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
River Jasper (Chert/Chalcedony mix)
Silicon Dioxide (SiO2) with iron oxide and chlorite inclusions