<|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:
8.6 8.6 8.6
20 20 20
Tc
0.00 0.00 0.12
Tc
0.00 0.00 0.20
Te
0.00 0.00 0.00
W
0.00 0.00 0.66
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
8.6 8.6 8.6
20 20 20
Tc
0.00 0.00 0.12
Tc
0.00 0.00 0.20
Te
0.00 0.00 0.00
W
0.00 0.00 0.66
Identify the crystal system.