I have another interesting stone, it’s small, with a hole in the center top and grooves where line or something must have been wrapped around it, possibly a sinker for fishing, since it was found on the beach. We also have a collection of round rocks that resemble soft balls. I am told that they were known as fire rocks and were used for ceremonial purposes around the edge of fires. I was also told that I was not permitted to pick them up and take them. Too late.
Ha ha! I have been warned to not pick up pottery shards in New Mexico but I picked them up anyway. Some of us just cannot help ourselves. LOL!