Hmmmm....well...it does look more like a blue smokey in this pic. I've never seen one go from grayish blue to yellow though....that is a little bit unusual to me.mossman said:Here's a pic from when I first got it. It has never been particularly blue. More white and black with a hint of light blue. I want to say he has always had some yellow. Sorry, not a marble. Couldn't think of the correct species.