Clear Quartz
Silicon Dioxide (SiO2)
Category
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Agate Geode
Cryptocrystalline Quartz (SiO2) with Chalcedony banding
River Pebble (Likely Quartzite or Chert)
Quartzite (primarily SiO2)
Quartzite
Quartzite (mostly SiO2)
Red Quartzite
Quartzite (Silicon Dioxide with Iron Oxide impurities, SiO2)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Sandstone (specifically Double Arch in Arches National Park)
Entrada Sandstone
Quartz Vein in Sandstone
Hydrothermal Quartz (SiO2) in Arenite
Quartzite Arrowhead (Archaeological Lithic)
Recrystallized Quartz (SiO2)
Quartzite River Stone
Quartzite (SiO2 with impurities)
Quartzite
Quartzite (mainly SiO2)
Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 principal)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Clear Quartz Cluster
Quartz (Silicon Dioxide - SiO2)
Quartzite Pebbles
Quartzite (SiO2)
Quartzite Pebble
Quartzite (principally Silicon Dioxide, SiO2)
Quartz (likely Clear Quartz or Rock Crystal)
Quartz (SiO2)
Quartzite pebble
Quartzite (SiO2 silicon dioxide)
Dyed Pink Quartzite (Jadeite Simulant)
Silicon Dioxide (SiO2) with organic dye
Quartz (Milky Variant)
Quartz (Silicon Dioxide, SiO2)
Quartz (likely Milky Quartz or Chalcedony)
Quartz (SiO2 - Silicon Dioxide)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
Quartzite (River Pebble)
Quartzite (SiO2)
Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Banded Rock (likely Quartz-rich)
Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals
Green Agate
Silicon dioxide (SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)