(1) Australia: The gems that have been discovered and mined include diamond, ópalo, zafiro, rubí, onyx, topacio, esmeralda, aguamarina, circón, peridoto, turmalina, granate, amatista, hibiscus, Más que 20 important gemstones such as rhodolite, fluorite and nephrite are written. Entre ellos, opal and sapphire are the most famous. Opal production accounts for 98% of the world, […]
