Input interpretation
urea (mineral) | crystal system | hoganite (mineral) | crystal system
Result
tetragonal | monoclinic
Basic properties
| tetragonal | monoclinic crystal families | tetragonal | monoclinic required symmetries | 1 4-fold rotation axis | 1 2-fold rotation axis or 1 mirror plane Bravais lattices | 2 | 2 point groups | 7 | 3 space groups | 68 | 13
Lattice properties
| tetragonal | monoclinic lattice systems | tetragonal | monoclinic Bravais lattices | simple tetragonal | centered tetragonal | simple monoclinic | base-centered monoclinic angle relations | α = β = γ = 90° | α!=90°, β = γ = 90° edge relations | a = b!=c | a!=b!=c unit cell volume | a b c | a b c sin(α)
Corresponding symmetry groups
| tetragonal | monoclinic crystal class | tetragonal pyramidal | tetragonal disphenoidal | tetragonal dipyramidal | tetragonal trapezoidal | ditetragonal pyramidal | tetragonal scalenoidal | ditetragonal dipyramidal | sphenoidal | domatic | prismatic Schönflies point groups | {C_4, S_4, C_4h, D_4, C_4v, D_2d, D_4h} | {C_2, C_s, C_2h} Hermann-Mauguin point groups | 4 | 4^_ | 4/m | 422 | 4mm | 4^_2m | 4/mmm | 2 | m | 2/m IUCr space group number | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | ... (total: 68) | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | ... (total: 13) Hermann-Mauguin space groups | P4 | P4_1 | P4_2 | P4_3 | I4 | I4_1 | P4^_ | I4^_ | P4/m | P4_2/m | ... (total: 68) | P2 | P2_1 | C2 | Pm | Pc | Cm | Cc | P2/m | P2_1/m | C2/m | ... (total: 13)