Complete mineralogical data for MELCHERITE. Chemical Formula: Ba2Na2MgNb5+6O19·6H2O. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MELIPHANITE. Chemical Formula: Ca4(Na,Ca)4Be4[Si7AlO24](F,O)4. Crystal System: Tetragonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MELKOVITE. Chemical Formula: Ca[Mo6+5P2Fe3+2O18(OH)12](H2O)8. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEGAWITE. Chemical Formula: CaSnO3. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEIERANITE. Chemical Formula: Na2Sr3Mg[SiO3]5[SiO2]. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEIERITE. Chemical Formula: Ba44[Si66Al30O192]Cl25(OH)33. Crystal System: Isometric. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEIFUITE. Chemical Formula: KFe6(Si7Al)O19(OH)4Cl2. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEIONITE. Chemical Formula: Ca4[Si6Al6O24](CO3). Crystal System: Tetragonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEISSERITE. Chemical Formula: Na5(UO2)(SO3OH)(SO4)3(H2O). Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEITNERITE. Chemical Formula: (NH4)(UO2)(SO4)(OH)·2H2O. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.