"foid bearing alkali feldspar trachyte"@en . . "Alkali feldspar trachytic rock that contains no quartz and between 0 and 10 percent feldspathoid mineral in the QAPF fraction. QAPF field 6'."@en . . . "foid bearing alkali feldspar trachyte"@en . . . . . . . . "Alkali feldspar trachytic rock that contains no quartz and between 0 and 10 percent feldspathoid mineral in the QAPF fraction. QAPF field 6'."@en . "http://inspire.ec.europa.eu/codelist/LithologyValue/foidBearingAlkaliFeldsparTrachyte"^^ . . "2015-08-18 18:02 PM CEST"^^ . . .