An Encyclopaedia of Indian Archaeology v1.c9.s14.t2.6

v1.c9.s14.t2.6

The proliferation of microliths—blades and fashioned blade blanks—is another evidence of the Chalcolithic intrusion. The raw materials are chert (more at MASKI), agate, carnelian, jasper, crystal, opal, etc. The tools are asymmetrical flakes, several varieties of blades including parallel-sided and backed-serrated types, lunates, trapezes, points, etc., of which blades predominate. Most of the tools exhibit secondary working or marks of use. They were used either singly or as composite tools. Blade blanks were removed from the core by the crested guiding ridge technique [16.15.2].