http://inspire.ec.europa.eu/codelist/LithologyValue/quartziteINSPIRE Registry teamJRC-INSPIRE-SUPPORT@ec.europa.euhttp://inspire.ec.europa.eu/registry2015-08-18 18:04 PM CEST2015-08-18 18:04 PM CESTquartziteMetamorphic rock consisting of greater than or equal to 75 percent quartz; typically granoblastic texture.