I am a black rock

Artifact: I am a black rock
Story: After the love of my teenage life broke up with me, he showed up at my house with this and told me that he was a block rock, and that I should keep it with me to think of him. He was a brooding, sexy loner so it was pretty on brand. I tried for years to interpret what that meant: "I am a black rock." I never figured it out, but I kept the rock. I don't know why. Maybe I am a black rock.
Contributor: Sara