The volcanic ash-tuff is a zeolite raw material and the belonged field (Aydagh) is located in 7 km north-western of Tovuz. The average thickness of the volcanic ash and tuff in the Aydagh field is 25-30m. And it is among Santonian-Campanian carbonate deposits. Moreover, zeolites(clinoptilolites) mixed with 20-80% silica have been found within these tuffs. The average amount of zeolite on that deposit is 55%. Estimated potential reserve of Aidagh tuffs is 20 mln tons.
