Category:Minerals in space group 139
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This category lists minerals that display the I4/mmm (No. 139) space group symmetry of the tetragonal crystal system.
This is a non-diffusing subcategory of Category:Tetragonal minerals.
It includes minerals that can also be found in the parent category, or in diffusing subcategories of the parent.
It includes minerals that can also be found in the parent category, or in diffusing subcategories of the parent.