Drawing of chert hoe from Marge site showing location of luster on facets of tool face.

Fortier, A.C. 1996. The Marge Site: Late Archaic and Emergent Mississippian Occupations in the Palmer Creek Locality. American Bottom Archaeology, FAI 270 Site Reports, Vol. 27. University of Illinois Press, Urbana. Fig. 13.9, p.xx

Image courtesy of the Board of Trustees of the University of Illinois and the Illinois Transportation Archaeological Research Program.