Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
Turquoise (possible Dyed Howlite or Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Turquoise)
Carnelian (Orange Agate)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Jasper Agate
Chalcedony (Silicon Dioxide - SiO2)
Dyed Pink Agate Slice
Cryptocrystalline variety of Quartz (SiO2)
Barite Rose on Marcasite
Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Grey Chalcedony (Tumbled)
Chalcedony (SiO2)
Chalcedony (specifically Agate or Carnelian pebble)
Chalcedony (Microcrystalline Quartz, SiO2)
Chalcedony (specifically Agate or Flint)
Silicon Dioxide (SiO₂)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Druzy Quartz Geode (Oco or Moroccan variety)
Silicon Dioxide (SiO2)
Yellow Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Jasper
Jasper (Silicon Dioxide, SiO2)
Wishing Stone (Basalt or Mudstone with Quartz/Calcite Veins)
Hydrothermally veined Basalt (SiO2/CaCO3 intrusions)
Chalcedony (Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz Geode
Silicon Dioxide (SiO2) in a Geode body
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)
Jasper
Silicon Dioxide (SiO2)
Red Jasper
Silicon dioxide (SiO2) with Iron inclusions
Jasper (likely river-worn)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Agate
Silicon dioxide (SiO2) - variety of chalcedony
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Jasper
Silicon dioxide (SiO2)
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities (Goethite)
Jasper and Quartz conglomerate (River Rock)
Silicon Dioxide (SiO2) - Chalcedony and Quartz variety
Banded Agate (Jasper-Agate)
Silicon Dioxide (SiO₂)
Red Jasper (possibly Agatized Jasper)
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Dendritic Agate (River Pebble)
Silicon Dioxide (SiO2) with Manganese or Iron oxide inclusions
Agate
Chalcedony (SiO2)
Dendritic Agate (specifically Orange/Tumbled)
Silicon Dioxide (SiO2) with Oxide Inclusions