(Mg0.9Fe0.1)2Al2(Al0.67Si0.33)3Si4O18[H2O]0.9 oS124 66

• Al-Fe-Mg-O-Si
• Al-Be-Fe-H-Li-Mg-Mn-Na-O-Si
• Al-Bi-Mg-O-Si
• Al-Be-Fe-H-Li-Mg-Na-O-Si
• Al-Fe-H-Mg-Mn-Na-O-Si
• structural properties
• refractive index
• values of refractive index
• optical properties
• Mohs hardness
• disordered
• metalloid
• chalcogen
• alkaline
• silicate
• orthorhombic