<|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:
4.5 4.5 4.5
59 59 59
Mg
0.00 0.00 0.00
Zn
0.58 0.58 0.58
Cu
0.16 0.16 0.16
Ag
0.74 0.74 0.74
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.5 4.5 4.5
59 59 59
Mg
0.00 0.00 0.00
Zn
0.58 0.58 0.58
Cu
0.16 0.16 0.16
Ag
0.74 0.74 0.74
Identify the crystal system.