This is my favorite UFO marble from Gateson yet! Gateson highlighted several areas with UV Half-life glass, and it is SO perfect for a marble like this, really bringing the spaceship to life. There are actually 5 spots with the UV - the 3 sparkly spots on the edges of the UFO, the underside of the UFO, and then on the bottom of the marble. All 5 of those areas fully light up really brightly with a black light, but in my pics they are only partially lit because I only hit them with a UV laser pointer (which is really fun to do, ha!). As usual, there is loads of glass detail in the landscape of the mountain beneath the UFO, so fun to explore and study. The whole effect with this UV UFO is just really cool, and this is truly everything a marble should be! Don't miss this special gem right here! Signed 'Gateson 2015'.