It takes a lot of practice to learn what you can get from a horseshoe nail and what you can't get. Practice makes better. They will do a lot, but they won't do everything. That point looks well made and sharp. It will outlast a pile of obsidian points. Most Texas rock is tough as a turtle's back till it is cooked, and even then some of it is difficult. The benefits are durability and variety in colors and texture.
Don't get down on Texas. It beats the socks off most places.
WA