Very interesting find....

[TSUMS]

Back in April I was near a site and found a nice quartz triangle....right near it I found this....is it a drill, or maybee a small stark or morrow mountain... it well worn and used..

[Claycald]

I'm thinking that's a case of mistaken identity , right shape but I don't see any thing that makes me think it's anything but a rock. Keep up the hunt