Complex sentence: Remains of Oguz and Khorezm pottery and stone talc vessels originating from Sultan-Uizdag mountain have been found, however no coins have ever been found either here or at Sherkala implying only bartering occurred.
Split into simpler sentences: Remains of Oguz, Khorezm pottery and stone talc vessels originating from Sultan-Uizdag mountain have been found. But coins have never been found either here or at Sherkala, implying that only bartering occurred.