<|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:
3.0 3.0 7.5
90 90 90
Tl
0.00 0.00 0.76
Ru
0.10 0.00 0.64
Ru
0.10 0.00 0.89
W
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.0 3.0 7.5
90 90 90
Tl
0.00 0.00 0.76
Ru
0.10 0.00 0.64
Ru
0.10 0.00 0.89
W
0.00 0.00 0.00
Identify the crystal system.