(1) Αυστραλία: The gems that have been discovered and mined include diamond, opal, ζαφείρι, ρουμπίνι, onyx, τοπάζι, σμαράγδι, aquamarine, ζιρκονίτης, peridot, είδος πολύτιμου λίθου, λυχνίτης, αμέθυστος, hibiscus, More than 20 important gemstones such as rhodolite, fluorite and nephrite are written. Μεταξύ αυτών, opal and sapphire are the most famous. Opal production accounts for 98% of the world, […]
