
The serpentine is a family of metamorphic rocks which includes around twenty mineral species. Serpentine is soft which makes it easy to carve. Some varieties can even be worked with a knife. The "noble" Serpentine is light olive green and translucent. It is used in the design of jewellery and small sculpture. Serpentines are used in crystal healing for conditions involving the heart or lungs. They also help with concentration and meditation.