Description and Use. Copper is a reddish-brown, odorless metal. It is used in. electrical wiring and plumbing, in alloys and protective coatings. for other metals, and in insecticides, fungicides and herbicides.
YANGON, Myanmar: An enormous jade boulder that weighs up to 192 tons has been found in Myanmarâs restive Kachin State, officials said Saturday. The 174,600-kilogram raw jade stone was discovered in a gem-rich region of Hpakant Township in northern Kachin on Tuesday, according to an information ministry statement.
China. Few gems have the mystique of jade, a stone that has been revered in China for more than 4000 years. Jade is also one of the most misunderstood of gems -- there is widespread confusion about the types of jade, about the most valuable colors, and the standards used to grade it.