The chief raw materials used in their manufacture were flint and obsidian.
Microliths were made from segments of blades or bladelets retouched at the edges and were no more than 2,6 cm long. They were produced with the techniques of percussion and of microburin and have been classified as geometric microliths and non geometric microliths.

The geometric microliths can be triangular, trapezoid, rectangular or crescent ("segment de cercle") in shape. Their geometrical form is the result of fine and continuous retouch on one or more edges resulting quite often a truncation.

The non geometric microliths are usually points shaped on whole or parts of bladelets.

Excavations in Greece at the caves of Franchthi at Hermionid, Theopetra at Trikala and Cyclops at Yioura near Alonnisos have revealed significant collections of microliths.