Jade

Jade is the generally accepted name for a class of stones including jadeite and nephrite. It has a waxy appearance and when it is freshly mined it comes in light to dark shades of green, and white. As it ages, the color of jade deepens to a rich brown. Bards and other musicians in the Realms wore jade for luck as it was said to improve musical talent. A typical specimen had a base value of 100 gp.