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.
The history of jade goes back several thousand years when jade was first used to make weapons and tools because of its toughness. The Mayans and Aztecs regarded jade highly and the name jade originates from the Spanish piedra de ijada, meaning stone for the pain in the side. It was named in this way after Spanish explorers saw natives of Central America holding pieces of jade to their sides, believing that it could cure ills.