Competitive construction materials e.g. cement, ceramic, metal, plastic, glass, are made using massive quantities of electricity and oil which, in turn, use up irreplenishable resources as well as create irreversible pollution in their making. 

   Granite lasts for centuries - so the overall requirement in the long term of different materials for construction gets greatly reduced.
 
   Usage of wood results in loss of life-giving trees and in devastation of forest lands.
 
   There is no waste in granite excavation. Blocks are used to make slabs and tiles. Smaller pieces are used to make foundations, pillars and walls in village houses which are thus low cost, more attractive and permanent. Smallest pieces are made into road metal by crushers. After excavation, the quarries are refilled and converted into agricultural lands.