During the 1997 season at Çatalhöyük the usual varieties of
obsidian artifacts were found including projectile points,
blades, flake tools, and of course, waste flakes. But the
most notable discovery was a small storage (or cache) pit
containing 50 large, heavy obsidian flakes that had been
intentionally and carefully hidden away for later use.
According to James Conolly, the evidence indicates that they
were not made at the site, but instead were "pre-formed
imports from the obsidian sources in Central Anatolia
brought to Çatalhöyük and, without significant modifications
to their original state, cached."