Native American Indian Arrowhead Spear

Uo for auction is this great Native American Indian arrowhead or spear point. It measures almost 7" long and 1 5/8" at it's widest point. I'm not exactly sure what type of rock it was made from. These were bought out of an old estate in North Carolina. This on had a tag on it at one time that said, "Kershaw County, South Carolina". This arrowhead is in wonderful condition with NO recent chipping. Please email me with any questions!