Name Formula Peak Relative theta rad theta deg 2*q deg hkl Intensity percent Gold Au 1st 10000 0.333 19.1 38.2 111 2nd 4800 0.387 22.2 44.4 200 3rd 2740 0.564 32.3 64.6 220 4th 2850 0.677 38.8 77.6 311 5th 820 0.713 40.9 81.7 222 6th 360 0.856 49.1 98.1 400 7th 1190 0.967 55.4 110.8 331 8th 1140 1.006 57.7 115.3 420