The quartz looks exactly like the broken pieces I'm seeing, very crude with impurities. I don't see any detailed work on them from the pictures, however I'm thinking both were knifes that are Archaic in age. I can picture the brown one looking somewhat like a scalpel if it wasn't smoothed down also. The area I hunt in NC has plenty of crude forms like that with the occasional better quality pieces scattered about. Most are deformed and weathered but I can still make out a form that is unusual like yours. They look almost identical to what I've seen here in NC. If you find anything else I'll be glad to help! Thanks for posting and God bless! B. Martin