8-equatorial capped pentagonal prism 18-vertex, Electronic energy gap, Monoclinic

• Ca-N
• As-Na
• Co-Er-Si
• Ca-Mn-Sb
• I-La-Si
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• thermal energy gap
• non-disordered
• metalloid
• transitional
• ternary