x-ray of pearls

[nima]

what am i supposed to see in x-rays of different pearls .can you post some x rays so that i can understand better.

 

[pearl guide]

There is quite a bit here -

http://www.ssef.ch/research-publications/presentations/pearls/

 

[nima]

thanx,that was pretty informative.what about external diff between freshwater and natural.subtle diff like caitlin had mentioned in "golden natural basra pearl post"about there being fine lines below the surface o natural pearls.