Clam pearl

[myglavin]

I have a clam pearl of Tridacna gigas, weighing 120 KGS., although it is not yet cleaned.

 

[GemGeek]

This is Not a Pearl

This is not a pearl. The giant clam, Tridacna gigas, is under attack. The rumor mill never rests on the subject of giant clam “pearls”. They are supposed to be worth millions, if not hundreds of thousands of dollars. Clam pearls, technically calcareous concretions, do exist. Good clam pearls...

www.pearl-guide.com