Item-No. Type of productTip-ColourOxide.Composition %DiameterLength /Height1 Pure Tungsten green W 99.95 1mm-50 mm 175 or 150 or 75 mm2 Thoriated Tungsten red Tho2 1.72.2 1mm-10 mm 3 Thoriated Tungsten blue Tho2 0.250.55 1mm-10 mm 4 Thoriated Tungsten yellow Tho2 0.81.2 1mm-10 mm 5 Thoriated Tungsten purple Tho2 2.03.2 1mm-10 mm 6 Thoriated Tungsten orange Tho2 3.84.2 1mm-10 mm 7 Lanthanated Tungsten azure La2 o3 1.82.2 1mm-10 mm 8 Lanthanated Tungsten gold La2 o3 1.31.7 1mm-10 mm 9 Lanthanated Tungsten black La2 o3 0.91.2 1mm-10 mm 10 Zirconiated Tungsten brown Zro2 0.150.5 1mm-10 mm 11 Zirconiated Tungsten white Zro2 0.70.9 1mm-10 mm 12 Ceriated Tungsten grey Ceo2 1.82.2 1mm-50 mm