| Groups and the symmetry operations | Crystal families |
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| square, tetragonal, square oblique, square triclinic |
|
| tetragonal, square rectangle, (square oblique)-al |
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| square oblique, (square oblique-)al |
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| tetragonal, square rectangle, (square oblique)-al |
|
| square rectangle, square orthorhombic |
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| square oblique, (square oblique)-al |
|
| square rectangle, square orthorhombic |
|
| monoclinic di squares, (monoclinic di squares)-al |
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| triclinic square |
|
| triclinic square |
|
| (square oblique)-al |
|
| (square oblique)-al |
|
| (square oblique)-al |
|
| square orthorhombic |
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| (monoclinic di squares)-al |
|
| (monoclinic di squares)-al |