Blue Chalcedony
Silicon Dioxide (SiO2)
Category
Browse mineral (chalcedony) specimens identified by the Rock Identifier community.
Blue Chalcedony
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron inclusions
Jasper
Silicon dioxide (SiO2)
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
Agate (Chalcedony Variation)
Silicon Dioxide (SiO2)
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe oxides)
Amethyst (Geode)
Silicon Dioxide (SiO2) with iron impurities
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxide
Blue Crackle Quartz (Dyed Fire Agate/Quartz)
Silicon Dioxide (SiO2) with artificial dye treatment
Pink Chalcedony
Silicon Dioxide (SiO2)
Amethyst Geode
Silicon Dioxide (SiO2) with iron impurities
Argetine Blue Agate (Chalcendony variant)
Silicon Dioxide (SiO₂)
Agate (specifically a Yellow/Honey Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Blue Chalcedony
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Yellow Chalcedony
Silicon Dioxide (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Cryptocrystalline Quartz (SiO2) with Iron Oxide impurities
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Chalcedony with Matrix
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Tiger's Eye
SiO2 (Silicon Dioxide) with fibrous crocidolite inclusions
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions
Agate
Silicon dioxide (SiO2)
Blue Lace Agate
Chalcedony (a form of Quartz) - SiO2