<|im_start|>system
Please reason step by step, and put your final answer within \boxed{}.<|im_end|>
<|im_start|>user
Given the following CIF representation:
data_MgPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.63
_cell_length_b   7.63
_cell_length_c   2.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgPt2
_chemical_formula_sum   'Mg3 Pt6'
_cell_volume   142.28
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Mg  Mg1  1  0.0  0.41  0.41  1.0
  Mg  Mg2  1  0.82  0.2  0.41  1.0
  Pt  Pt3  1  0.29  0.0  0.41  1.0
  Pt  Pt4  1  0.85  0.99  0.41  1.0
  Pt  Pt5  1  0.67  0.62  0.41  1.0
  Pt  Pt6  1  0.85  0.0  0.0  1.0
  Pt  Pt7  1  0.58  0.2  0.0  1.0
  Pt  Pt8  1  0.39  0.41  0.0  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_MgPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.63
_cell_length_b   7.63
_cell_length_c   2.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgPt2
_chemical_formula_sum   'Mg3 Pt6'
_cell_volume   142.28
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Mg  Mg1  1  0.0  0.41  0.41  1.0
  Mg  Mg2  1  0.82  0.2  0.41  1.0
  Pt  Pt3  1  0.29  0.0  0.41  1.0
  Pt  Pt4  1  0.85  0.99  0.41  1.0
  Pt  Pt5  1  0.67  0.62  0.41  1.0
  Pt  Pt6  1  0.85  0.0  0.0  1.0
  Pt  Pt7  1  0.58  0.2  0.0  1.0
  Pt  Pt8  1  0.39  0.41  0.0  1.0

What is the crystal system of this material?