Look at all those strands of blue-green turquoise. They swirl around the marble as if they were dancing, hence the name. Well I recently got a bunch of these types of marbles in different colors and will be making a Color's Dance Collection which you can view here
. There's probably not much in it at the moment but hopefully I can add more pieces in the near future!
Also, to celebrate valentine's Day, I' having a sale in my shop! There's a coupon code in the Announcement section for 15% off anything in my shop, including this item!