<|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:
2.9 4.6 5.3
90 90 90
Mg
0.00 0.00 0.00
Tl
0.43 0.00 0.64
Os
0.05 0.32 0.19
Os
0.81 0.32 0.08
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.9 4.6 5.3
90 90 90
Mg
0.00 0.00 0.00
Tl
0.43 0.00 0.64
Os
0.05 0.32 0.19
Os
0.81 0.32 0.08
Identify the crystal system.