Pentagonal bipyramid 7-vertex, Structural properties, Triclinic

• Al-F-H-Li-O-P
• Al-Ca-Na-O-Si
• Ca-H-O-P
• Al-Ca-O-Si
• Al-Ca-Fe-H-Mg-Mn-O-Si
• chalcogen
• transitional
• non-disordered
• alkali