Beautiful blue crystal specimen of Liroconite from Cornwall's most well known location for the species, at Wheal Gorland, St. Day. A rich area atop the specimen displays Liroconite crystals measuring to 4mm, with lots of other areas on the specimen with Liroconite. A fne classic rich sky blue colour is seen to the Liroconite crystals. A super specimen from this famous Cornish mine.