Average Analysis of Feldspar powder (Potash)
	Silica		SiO2		61 to 62%
	Alumina		Al2O3		18 to 19%
	Ferric Oxide		Fe2O3		0.4%
	Titanium		TiO2		0.5%
	Manganes Oxide		MnO		Traces
	Calcium Oxide		CaO		Nil
	Magnesium Oxide		MgO		Nil
	Phosphorous Pentoxide		P2O5		0.08%
	Sulphur TriOxide		SO3		0.06
	Sodium Oxide		Na2O		2.1%
	Potassium Oxide		K2O		10 to 12%
	Loss on Ignition		LOI		0.38%
	Fineness				200 mesh
Average Analysis of Feldspar powder (Sodium)
	Silica		SiO2		63.21%
	Alumina		Al2O3		19.50%
	Ferric Oxide		Fe2O3		0.11%
	Titanium Oxide		TiO2		0.03%
	Manganes Oxide		MnO		Traces
	Calcium Oxide		CaO		Nil
	Magnesium Oxide		MgO		Nil
	Sodium Oxide		Na2O		3.10%
	Potassium Oxide		K2O		10 to 12%
	Loss on Ignition    I.e combined water Organic Matter etc		LOI		0.28%
	Fineness				80 mesh