Classic Bisbee combo - blue azurite with intense saturation, on a carpet of green malachite! This is a classic style from around the turn of the 1900s, and was a trim off a larger, old specimen from an antique collection. It is actually really difficult to get one of these, as a thumbnail that meets modern display standards - they were not saving so many thumbnail sized specimens at the time. While there are many azurite specimens to buy that are "small" in size, this particular one is a style and find, that really is special historically.