Ca2FeAl2[SiO4][Si2O7]O[OH] mP42 11, Chalcogen

• Al-Ca-Fe-H-O-Si
• Al-Ca-Ce-Fe-H-La-Mg-Nd-O-Si
• Al-Ca-Ce-Fe-H-Mn-O-Si
• Al-Ca-H-Mn-O-Si
• Al-Ca-Cr-H-O-Si-V
• structural properties
• refractive index
• values of refractive index
• optical properties
• Mohs hardness
• metalloid
• chalcogen
• hydroxide
• disilicate
• orthosilicate
• monoclinic