Not an expert on the subject, but we can find out the origin of the chalice, let say if you were to know whe wholesaler that brough in the chalice, but I don't think they will know what depth the chalice were collected. Only the divers might know.
Back to your question, I sometimes find that when fragging the wild chalices thick in size, the actual bone is very thin. the bottom part of the bone falls off as though thalice was growing over the live rock or the skelton of previous coral. Did you have this experience as well?
Its like skin, actual bone, deadbone/live rock.