Ca5[SiO4]2[OH]2 mP34 14

• F-H-Mg-O-Si
• F-Fe-H-Mg-O-Si
• F-Fe-H-Mg-Mn-O-Si-Ti
• F-Fe-H-Mg-O-Si-Ti
• H-Mg-O-Si
• structural properties
• refractive index
• values of refractive index
• optical properties
• Mohs hardness
• alkaline
• chalcogen
• metalloid
• disordered
• monoclinic