<|im_start|>system
Please reason step by step, and put your final answer within \boxed{}.<|im_end|>
<|im_start|>user
Given the following crystal representation:
2.8 2.8 7.9
90 90 90
Ir
0.39 0.39 0.11
Ir
0.39 0.39 0.83
Ru
0.00 0.00 0.00
Au
0.00 0.00 0.97
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.8 2.8 7.9
90 90 90
Ir
0.39 0.39 0.11
Ir
0.39 0.39 0.83
Ru
0.00 0.00 0.00
Au
0.00 0.00 0.97
Identify the crystal system.