Lovely jar with strong UV glow under both 365 and 395 - lovely finish looks like the ripples of water. This jar is not coated - it is genuine UV reactive glass most likely to be terbium-doped glass, I store mine in my uranium cabinet and it looks just as lovely alongside my other uranium items. A really lovely piece for collectors of glowing glass. Description revised to accommodate a reseller who tried to resell one for £40 and as uranium despite this not being described as such and got called out by a fellow seller. So please - BUY BECAUSE YOY LIKE THE GLOW AND NOT BECAUSE YOU ARE TRYING TO RESELL FOR PROFIT!