<|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:
6.5 6.5 6.5
150 150 41
Tl
0.00 0.00 0.34
Ni
0.00 0.00 0.19
Sn
0.00 0.00 0.65
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.5 6.5 6.5
150 150 41
Tl
0.00 0.00 0.34
Ni
0.00 0.00 0.19
Sn
0.00 0.00 0.65
Identify the crystal system.