... are needed here); zircon in zirconium, silicon, iron, titanium; eight conventional elements of frit glaze, as well as zirconium, cobalt ... , lead, boron , barium, zinc, chromium, etc.; eight of conventional elements of spodumene and lithium feldspar, and lithium ... beginning of weighing, 2 to 3 hours to complete eight conventional analysis of the chemical composition of the entire ...