<|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:
3.1 4.1 6.8
90 102 90
Ba
0.24 0.00 0.33
Cu
0.00 0.00 0.00
Pt
0.90 0.07 0.20
Pt
0.64 0.07 0.46
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.1 4.1 6.8
90 102 90
Ba
0.24 0.00 0.33
Cu
0.00 0.00 0.00
Pt
0.90 0.07 0.20
Pt
0.64 0.07 0.46
Identify the crystal system.