There is nothing quite like the electric blue of a good Boleite. In this case, the cubes (up to .5 cm) have a deep blue color, superb luster that is better than the norm, and modified corners that are very attractive and equally unusual. 3 crystals are pristine, one is rough (but can be popped out if you wish). For my money, this is one of the better Boleites that I have come across for the aesthetics, richness, and price range combination. Collected in the mid-1970s by Bill Larson and Ed Swoboda.