What family of tectosilicate minerals, named from the German for 'field', is the most abundant in the Earth's crust?
Veldspar Feldspathic Feldspath Felspathic Feldspars Feltsparr Feldspar Felspar
feldspar veldspar feldspars feldspathic felspathic felspar feltsparr feldspath
feldspars
WikipediaEntity
Feldspars