Things You'll Need
Instructions
Fill a cup with warm water. Don't add chemical cleaners to your water cup -- they could further erode the arrowhead.
Dip your arrowhead into the water and swirl it around a bit to loosen up any sediment that has built up on it.
Use a toothbrush to gently further loosen the dirt from the arrowhead's exterior. Dip the arrowhead into your water cup to wash away the broken-down sediment. Continue to submerge the arrowhead into the cup and brush away stubborn sediment.
Pat your cleaned arrowhead dry with a piece of terry cloth.