Yellow Quartz River Pebble
Silicon Dioxide (SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Yellow Quartz River Pebble
Silicon Dioxide (SiO2)
Quartz (likely Jasper or Chert variety)
Quartz (SiO₂)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Clear Quartz
Silicon Dioxide (SiO2)
Serpentine Schist with Quartz Vein
Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Orbicular Jasper (Ocean Jasper tendency)
Silicon Dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron
Rose Quartz
Silicon Dioxide (SiO2)
Granite Pebble
Granite (Felsic Plutonic Rock)
Quartz (Milky or Yellowish)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Rose Quartz with Hematite inclusions
Crystalline Silicon Dioxide (SiO2)
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Granite
Granite
Quartz (likely Rose Quartz or Milky Quartz based on color)
Quartz (SiO2 - Silicon Dioxide)
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Agate
Silicon dioxide (SiO2)
Quartz Druzy Geode
Silicon Dioxide (SiO2) - Crystalline Variety
Blue Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
Banded Calcite (often sold as 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Banded Agate (Polished Slice)
Chalcedony (SiO2) with Quartz
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Citrine Quartz Cluster
Silicon Dioxide (SiO2)
Amethyst
SiO2 (Silicon Dioxide)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Rose Quartz (SiO2 with traces of Ti, Fe, or Mn)
Yellow Quartz (Citrine Quartz variety / Ferruginous Quartz)
Silicon Dioxide (SiO2) with iron inclusions
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxide
Amygdaloidal Basalt
Basalt with secondary mineral infilling
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2)
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Pyrite
Iron Disulfide (FeS2)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)