Al2.5Ca1.5Cr0.5F0.5Fe0.5H1.5Mg3.5Na0.5O23.5Si6.5

• Al-Ca-Cr-F-Fe-H-Mg-Na-O-Si
• structural properties
• chalcogen
• hydroxide
• magnesio-hornblende
• halogen
• metalloid
• monoclinic