A question that I cannot answer .... please take a look... :

This is one of the rocks /shellstone in Sumagdang .... a place / beach resort , where lives got drawned every year.
There are mixed theories of explanations among the people around.
Does anybody knows how can a shell be molded to the rock / shellstone?
My best regards,
IndayLeticia
lostjohnny
Sediment, probably a high concentration of lime in the stone as well will cause a successful adhesion.