This stunner of a marble from James really likes to transition - it looks almost clear in regular lighting, then when you hit it with some stronger light, you can see the faint green lines within, and then when you hit it with a black light....BAMMM! that UV glass lights up like a Christmas tree! It's gorgeous to view like this in a darkened room, and the UV glass is really, REALLY bright - I really had to tone down the exposure on this one compared to normal UV glass. It's just a super sweet, fun design! Signed 'Alloway 12/02'. Actually, it looks like 12/02 to me, but I bought the marble in 2014, so I don't exactly know what that date or number is supposed to be.