Fossil Hemi Tooth

I love the color on this tooth. Its almost a reddish-purple color. Plus its got a cool variation on the blade. There is a little indentation on the edge of the blade that looks like feeding damage but magnifaction reveals there is no break, but the enamel is smooth and is just indented. On another species I would call this a pathology but I've seen it before on other hemis. Perhaps it has something to do with the way the teeth fit together in the jaw? There is another variation in some teeth in the same place on the tooth that produces a line of serrations on the labial side of the tooth.