How old are archaic arrowheads?
You can differentiate between valuable paleo points (more than 9500 years old), archaic points (10000 to 2700 years old), and more recent types that are not worth as much. You can also categorize arrowheads in many other ways.
What arrowheads are worth the most?
Arrowheads are worth more if they are very ancient or made out of unusual materials. An arrowhead (or more likely a spearhead) that is 10,000 years old might be worth a fortune. Arrowheads made of gems such as japer are worth more than typical grey stone arrowheads.