I see that you are in an area of Alabama where there should be plenty of good artifacts to be found. From what I see in the photographs that you posted, they are natural and not worked. JMO. Good luck and keep looking. Plenty of relics out there waiting to be found.
Thought I would provide some concluding remarks. The long piece is an artifact. It is a hoe. It wuss found in a field near the river and is made from material from 29 miles away. The second piece is a chopper.that was found amongst some fire-cracked rock.
Additional materials found with chopper. Note the size of base of the point. Also, note how the spalls (such as off of chopper) were used as knives. Finally, note the fir-cracked rock.