A large, flashy, sparkling specimen with superb examples of this species, perched smartly on calcite matrix. This is one of the largest and most colorful (well, for a white mineral, it has a sort of saturated white "pop" to it that is hard to describe otherwise) examples I have seen on the market, and perhaps the best from this locality I have personally had. It came from the collections of British field colelctor Peter Briscoe (in 1998) and American collector of UK classics, Tim Sherburn, and retains the labels. A beautiful specimen of an unusual rarity from one of only two classic old localities for the species. To my mind, they are the more beautiful.