 | This is a non-diffusing subcategory of Category:Orthorhombic minerals. It includes minerals that can also be found in the parent category, or in diffusing subcategories of the parent. |
This category lists minerals that display the C2221 (No. 20) space group symmetry of the orthorhombic crystal system.
Pages in category "Minerals in space group 20"
The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes.