... 17670; "Unified Katalogue For Natural Stone" became effective at 01-08-99. Buying natural stones in the P.R. of ... demands a scientific terminology for the denomination of natural stones, determined with a petrografic examination according to EN ... BASALT ColorsBlack FinishedPolished,honed,flamed,bushhammered,sandblasted, chiseled, natural split,tumbled,pineapple,etc. Productiontile,slab,kerbstone,cube ...