Figure 3

Quartzite cores. (A–E) unifacial unidirectional cores; (F–H) bifacial partial cores; (I,J) peripheral unidirectional cores; (K,L) multifacial multidirectional cores; (M,N) discoid cores. This figure was generated on the basis of photos made by R. Gallotti with Adobe Photoshop CC version 2015-1, 20151114.r301 X64. Copyright 1990 2015 Adobe Systems Incorporated and its licensors. All rights reserved.