I bet your wife must've been absolutely thrilled when she saw you lugging that piece home.
It looks to be naturally worn by water and weather... but then again, what do I know.
I often wondered about them having those back then. Being Native American, and having a town in Oklahoma named after my family, and my 4x great grandfather being a delegate to the Senate for the First Cherokee Nation Council, I get to remembering all the stories my grandparents, and dad told me about them having sex all the time back then, because when they weren’t hunting, gathering, and making tools, they were making something else. I’ve found lots of soap stone, I’ve also made a lot of sharpened blades by using soap stone to sharpen steel with. Never have I used it as a tool, hammer, or anything other than a sharpening stone.