Your Messenger message:

"Hi, Tony. I've kept these 2 things you gave in college before during our thesis class. The black stone you asked everyone in class to pick one from a box. I'm not sure what it is. Is it volcanic rock? It looks like obsidian. The rosary card, I won as a prize in a pendulum exercise you did. If I remember correctly, you drew a map of the Com Arts classroom and asked everyone to take turns divining it with a pendulum. And then you asked where an item was located in a specific place in the room, by elimination I was the last person to say it was on top of the door or door frame. I think this was the object, and you gave it to me. "

My reply:

Hello _________!

It's a sealed and polished river stone. There is a belief that, when humans demise, they rise to the clouds, descend as rain, and become river stones.