K3Na5W18Mn6[SiO4]2O60[H2O]31.5 aP140 2

• H-K-Mn-Na-O-Si-W
• optical properties
• phonons
• wavenumber of optical phonon
• magnetic properties
• magnetic susceptibility
• oxide
• chalcogen
• alkali
• metalloid
• multinary
• triclinic