I have a well used 2" stemmed spear/knife tool found in Scott Co., Missouri. The material is a tannish gold colored flint/chert stone. This blade is 1 1/4" wide!!! These Archaic-Mississippian blades were part of the many Mitch Lewis collections. As with all the artifacts I sell, I guarantee them to be AUTHENTIC. I am a member of CSAS, AACA, MAS and GSLAS.