Touch based psychic carbon dating or something
that sounds pretty cool, actually!
Also I look up some psychic powers and found this thing and I think it’s pretty cool:
Psychometry - Also known as “object reading”, psychometry enables a psychic to pick up on psychic impressions (vibrations) left on an object by someone connected with it. Someone with this ability could use an unfamiliar object to reveal much about its owner.
Between this and the carbon dating power, which one makes the most sense for her?