Carnelian (Chalcedony)
Silicon Dioxide (SiO2) with trace Iron Oxide
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Carnelian (Chalcedony)
Silicon Dioxide (SiO2) with trace Iron Oxide
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with iron impurities
Honey Calcite Geode Segment
Calcite (Calcium Carbonate, CaCO3)
Jasper
Silicon Dioxide (SiO₂)
Jasper
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Botryoidal Chalcedony (Agate/Chert Nodule)
Chalcedony (SiO2)
Green Jasper
Jasper (Silicates, SiO2)
Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Agate Geode
Silicon Dioxide (SiO2) - Banded Chalcedony
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon dioxide (SiO2) with hematite impurities
Dendritic Agate / Moss Agate
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Amethyst (Raw Quartz)
Silicon Dioxide (SiO2) with iron impurities
Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Amethyst Geode
Silicon Dioxide with trace inclusions of Iron (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Fancy Jasper
Silicon Dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Agate Geode
Cryptocrystalline Quartz (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium) CuAl6(PO4)4(OH)8·4H2O
Orange Calcite
Calcium Carbonate (CaCO3)
Yellow Agate
Silicon Dioxide (SiO2)
Jasper (Red/Brown Variety)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide impurities)
Yellow Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
Chalcedony (Desert Rose or Botryoidal Chalcedony)
Silicon Dioxide (SiO2)
Green Jasper with Agate Banding
Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite
Red Jasper (Polished)
Silicon Dioxide (SiO2) with Hematite inclusions
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with inclusions of Chlorite or Actinolite