Board Thread:Questions and Answers/@comment-5775318-20130223175459/@comment-5551986-20130227142112

No one in SS has investigated and studied the medallions yet, Mayuri and Urahara may have recovered them from the deceased Quincy but there is nothing to be sure of till the stuides are complete. The fact they died also does not mean the medallion will break. Its a very secretive matter that will probably be revealed in later chapters, i dont think anyone can give a straight answer beside Kubo.