2015, Chalcogen, Monoclinic, Values of refractive index

• Al-Ca-H-O-Si
• Al-Li-O-Si
• Al-Ca-H-K-Na-O-Si
• Al-Ca-Fe-H-Mg-O-Si
• As-S
• chalcogen
• non-disordered
• metalloid
• alkaline
• disordered