Element KeV Mass% Error% At% compound Mass % cation K OK 0.525 49.85 0.40 65.07 52.2353 AlK 1.486 2.01 0.21 1.56 1.6475 TiK 4.508 0.45 0.46 0.19 0.4401 Sik 1.739 41.38 0.21 30.77 39.2019 FeK 6.398 5.62 0.70 2.10 5.7711 Total   100.00   100.00

Table 5: Elemental analysis of yellow sand after milling.