Hey guys, I’ve been trying to learn different rock types because I believe it’ll help me identify Native American artifacts out in the field. Is this a piece of chert? It looks like some examples I’ve seen online. It is really hard and I can’t scratch it with a steel nail.
My uncle found this conically shaped obsidian core while gardening in his backyard in Rancho Palos Verdes California. (L.A. county) near the coast. He had no idea what it was. the area where he unearthed it was at the bottom of a steep slope. He said that he has found other flakes of obsidian in...