<|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:
5.2 5.2 5.2
131 131 70
Hg
0.12 0.00 0.10
As
0.00 0.12 0.10
As
0.00 0.00 0.00
Pt
0.00 0.00 0.21
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.2 5.2 5.2
131 131 70
Hg
0.12 0.00 0.10
As
0.00 0.12 0.10
As
0.00 0.00 0.00
Pt
0.00 0.00 0.21
Identify the crystal system.