People keep calling every old rock a 'tool' without checking for wear patterns

I've seen so many posts where someone finds a vaguely sharp stone and immediately labels it an ancient tool. The real tell is microscopic wear from use, not just shape. At a site in New Mexico, our team analyzed over 200 lithic pieces last fall, and only 37 showed actual use-wear under magnification. If you just go by looks, you'll miss the real story of how people actually used materials. Has anyone else had to correct this assumption during a field survey?

3 comments

3 Comments

the_rose1mo agoTop Commenter

Honestly, what if the shape is the whole point though? Like, people back then weren't stupid. If a rock fits perfectly in your hand and has a sharp edge, you'd use it. Not everything needs a microscope to be real. I've seen some rocks that are so clearly worked, you can just tell. Maybe we're overthinking it and missing the obvious tools because they don't fit some perfect lab picture.

ruby_rivera761mo ago

Tell my cousin every time he finds a pointy rock in his yard, lmao. He's convinced his property is a major paleo site because he has a pile of gravel. I just nod and ask to see the microscope he definitely doesn't own.

troyreed1mo ago

Hey @ruby_rivera76, gotta defend the guy. Maybe he's onto something. Everyone starts somewhere, even with just gravel.