This wonderful marble showcases the two features that Atsushi is most famous for - the opal heart (sometimes a star) floating in the middle of billowy fuming, and then the lunar cycle depicted on the backside. It is mesmerizingly beautiful glass, particularly if you love space like I do. I took several shots of the backside to show the moon in its full cycle around the equator of the marble. Then there is another wonderful opal in the center of the back. This is quintessential Atsushi Sasaki, the one you want for your collection!