There are two types of jade; jadeite and nephrite. Jadeite is a precious gem and in its pure form it is white but also is green, lilac/lavender, pink, brown, red, blue, black, orange, and yellow. Jadeite is the most valuable type of Jade. Imperial jade is a rich emerald or apple green. Nephrite jade is stronger than steel as it was once used for tools like arrows and axe heads.