(1) Австралия: The gems that have been discovered and mined include diamond, opal, Сапфир, Руби, onyx, Топаз, Изумруд, Аквамарин, Циркон, peridot, Турмалин, гранат, Аметист, hibiscus, More than 20 important gemstones such as rhodolite, fluorite and nephrite are written. Сред тях, opal and sapphire are the most famous. Opal production accounts for 98% of the world, […]
