(1) Австралия: The gems that have been discovered and mined include diamond, opal, сапфир, рубин, onyx, топаз, изумруд, аквамарин, циркон, peridot, tourmaline, garnet, аметист, hibiscus, More than 20 important gemstones such as rhodolite, fluorite and nephrite are written. Среди них, opal and sapphire are the most famous. Opal production accounts for 98% of the world, […]
