52124.2 - unique x-ray type image formed in a pair of split Boulder Opal

This perfectly split pair of boulder opal forms a fascinating picture reminiscent of a chest and hip x-ray OR if turned upside down; a vase type lamp and shade.

Opal only: 4.5 x 4.5 mm  and ranging from about 3 mm to 6 mm in thickness. 

Frame: 185 x 135 mm