A REALLY NIFTY and AESTHETIC acanthite crystal cluster from a recent small find at the famous Rayas Mine at Guanajuato, Mexico. Splendent, cubic, dark gray acanthite crystals are beautifully stacked and branching, platform- or bench-like. Many of the crystals are hoppered or skeletal, included the two major acanthites. Just a nifty, three-sided thumbnail. SUPERB, highest quality competition level thumbnail.