Quartzite Pebble
Quartzite (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartzite Pebble
Quartzite (SiO2)
Jasper Pendant
Chalcedony (Quartz) - SiO2
Pyrite in Host Rock
Iron Disulfide (FeS2)
Quartzite
Metamorphosed Quartz Sandstone
Clear Quartz
Silicon dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Metamorphosed Quartz Sandstone
Banded Quartzite
Quartzite (SiO2 with impurities)
Quartzite Pebble
Metamorphic rock predominantly composed of Quartz (SiO2)
Unakite
Epidotized Granite
Banded Gneiss with Quartz Vein
Foliated Metamorphic Rock (Gneiss)
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
Quartz with Schorl (Black Tourmaline)
Silicon Dioxide (SiO2) with Sodium Iron Aluminum Borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
Jasper
Jasper (Cryptocrystalline Quartz; SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Quartz (Druzy) on Matrix
Silicon Dioxide (SiO2)
Unakite
Unakite (altered granitic rock)
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite (River Pebble)
Quartzite (composed primarily of Silica, SiO2)
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
River Pebble (Likely Quartzite or Chert)
Quartzite (primarily SiO2)
River Cobble (Quartzite)
Meta-orthoquartzite
Quartz Pebble
Silicon Dioxide (SiO2)
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Granodiorite
Granodiorite (Intermediate to Felsic Intrusive Rock)
Quartzite
Metamorphic rock predominantly composed of Quartz (SiO2)
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Amethyst (Quartz variety)
Silicon Dioxide (SiO2)
Quartz-veined Gneiss
Gneiss with Quartz (SiO2) intrusions
Amethyst
Quartz variety; chemical formula: SiO₂ (silicon dioxide) with Fe³⁺ impurities
Quartz (Milky or Rough Variety)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Unakite (or Epidote-rich Granite)
Unakite (composed of Epidote {Ca2(Al, Fe)3(SiO4)3(OH)}, Pink Orthoclase Feldspar {KAlSi3O8}, and Quartz {SiO2})
Dalmatian Stone (Dalmatian Jasper)
Dalmatian Stone (A variety of Perthite / Aplite)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Banded Agate (Geode Fragment)
Silicon Dioxide (SiO2) - Variety Agate