<|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 4.2 6.3
90 96 90
Ca
0.00 0.00 0.00
Ta
0.08 0.00 0.15
Cr
0.23 0.12 0.18
Cr
0.94 0.12 0.12
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.9 4.2 6.3
90 96 90
Ca
0.00 0.00 0.00
Ta
0.08 0.00 0.15
Cr
0.23 0.12 0.18
Cr
0.94 0.12 0.12
Identify the crystal system.