Chert
Microcrystalline Quartz (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Chert
Microcrystalline Quartz (SiO2)
Gneiss with Quartz Vein
Gneiss containing Quartz (SiO2) filler
Banded Agate
Silicon Dioxide (SiO2) - Variety Agate
Clear Quartz Sphere
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Chert (Pebble)
Microcrystalline to Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (chiefly SiO2)
Quartzite
Silica (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite with Quartz Veining
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Red Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite with inclusions
Metamorphic Rock (Mainly SiO2)
Chalcedony (Botryoidal/Agate nodule)
Microcrystalline Quartz (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Chert (Light Variety)
Sedimentary cryptocrystalline quartz (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite Cobble
Quartzite (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Quartz/Schist
Quartzite
Quartzite (SiO2)
Grey Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Gneiss
Foliated Metamorphic Rock (Gneiss)
Serpentinite
Serpentinite (composed largely of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile: Mg3Si2O5(OH)4)
River Rock (likely Quartzite or Chert)
Quartzite (primarily SiO2)
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Chert (Jasper/Flint variation)
Chert (SiO2)
Pink Quartzite
Quartzite (High-silica metamorphic rock)
Quartzite
Quartzite (SiO2)
Chalcedony on Matrix
Silicon Dioxide (SiO2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite
Green Aventurine
Silicon Dioxide (SiO2 with Fuchsite inclusions)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Yellow Quartzite
Quartzite (primarily SiO2)
Quartzite Pebbles
Quartzite (SiO2)
Yellow Quartzite (Iron-Stained Quartz)
Quartzite (SiO2 with Fe-oxide impurities)