Milky Quartz Pebble
Crystalline Quartz (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Milky Quartz Pebble
Crystalline Quartz (SiO2)
Quartzite with Hematite staining
Quartzite (SiO2)
Unidentified River Rock or Mudstone
N/A (Generic rock fragment)
Yellow Quartzite
Metamorphic Rock (Mainly SiO2)
Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Agate
Chalcedony (Cryptocrystalline variety of Quartz, SiO2)
Serpentine
Serpentine-group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Green Quartzite (Aventurine-like)
Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)
Yellow Quartzite (Iron-Stained Quartzite)
Quartzite (SiO2 with Fe2O3 trace impurities)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Unakite
Epidotized Granite
Sunstone
Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8
Quartzite (River Pebble)
Metamorphic Quartzite (SiO2)
Pink Quartzite
Silica (SiO2) - Metamorphic rock
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Quartzite (with Iron Staining)
Metamorphic Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Gneiss (likely)
Gneiss
Quartzite Pebble
Quartzite (SiO2)
Quartzite (River Pebble)
Metamorphosed Sandstone (SiO2)
Quartzite
Quartzite (SiO2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Quartz (in matrix)
Quartz (SiO₂)
Shale (possibly Carbonaceous or Oil Shale)
Argillaceous Sedimentary Rock
Quartzite Pebble
Quartzite (SiO2)
Quartzite (Ferruginous)
SiO2 (Metamorphosed Sandstone)
Quartzite Pebble
Quartzite (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
Green Aventurine
Quartz variety (SiO2 with inclusions of Fuchsite)
Quartzite pebble
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chert (Nodule)
Chert (variety of microcrystalline quartz, SiO2)
Quartzite (Iron-stained)
Quartzite (SiO2 with Iron oxide inclusions)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)