Serpentine

Serpentine is the name given to a wide variety of related materials known as williamsite, ricolite, verde antique, picrolite, taxoite, bowenite, or poor man's jade. Those varieties used extensively for carving are traded as serpentine stone. The finer stones are a vivid pure green while the lesser value stones are a dull green or have white mottling. In the Realms, good stones are widely used in cabochon form, set into ornamented weaponry and harness, rings, and courtly jewelry of all types. A typical specimen has a base value of 50gp.