<|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:
4.2 4.2 4.2
59 59 59
Tc
0.42 0.42 0.42
Ni
0.00 0.00 0.00
Hg
0.47 0.47 0.47
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.2 4.2 4.2
59 59 59
Tc
0.42 0.42 0.42
Ni
0.00 0.00 0.00
Hg
0.47 0.47 0.47
Identify the crystal system.