<|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:
5.1 5.1 5.2
109 109 39
Ca
0.63 0.00 0.27
As
0.04 0.00 0.86
Ir
0.64 0.00 0.17
Ir
0.87 0.00 0.87
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.1 5.1 5.2
109 109 39
Ca
0.63 0.00 0.27
As
0.04 0.00 0.86
Ir
0.64 0.00 0.17
Ir
0.87 0.00 0.87
Identify the crystal system.