Fire Agate
During volcanism hot water soaked with silica iron oxide fills cracks and bubbles in rock
| variety of Chalcedony | en: Chalcedony – de: Chalcedon – fr: Calcédoine | ||
| other languages: cs: Chalcedon – et: Kaltsedon – ja: 玉髄 – pl: Chalcedon – pt: Calcedônia – sk: Chalcedón | |||
| subvarieties: Sagenitic Fire Agate | |||
