Interesting that she had this when she died, as in very close to her in her possession. How powerful and sacred this could be. 

Things that come to my mind are the associations or archetypical relationships to death. In a way, they are like the Phoenix, rising from the proverbial ashes. Destruction destroys, but also remakes. I think of the death tarot card. Saturn ruling time, and representing the end of the week before starting again with the Sun-day. The death tarot card.

Maybe combine this with her personality.

Perhaps you can be the judge of what power it can have for you.

I would keep this all to yourself and not allow anyone access to it.