NEPHRITE: is a genuine Jade, and derives its name from the Latin term: lapis nephriticus, meaning "kidney stone," since it was often worn to remedy diseases of the kidneys. Nephrite Jade is the second type of the two minerals commonly known as Jade; Jadeite being the other.  Nephrite is more common than Jadite and is generally forest green and a bit fibrous in appearance which is why it is often referred to as "Sloppy Jade".  While mainly mined in Canada, it is also found in Taiwan, Australia, New Zealand, China, US and Russia.