Damar batu or resin stone is fossilized resin. This resin is obtained from the soil. Stone resin experiences a natural hardening process. In general damar batu has a slightly yellowish color, there are also stone resin that is brown, white, and even golden. The texture of resin stone itself is much tougher than copal and resin of cat’s eye. Damar Batu is obtained from trees of the species dipterocarpaceae.