Complete mineralogical data for MATTEUCCITE. Chemical Formula: Na(SO3OH)(H2O). Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MATTHEDDLEITE. Chemical Formula: Pb10[SiO4]3(SO4)3Cl2. Crystal System: Hexagonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MATTHIASWEILITE. Chemical Formula: Pb(Te4+O3). Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MATULAITE. Chemical Formula: Fe3+Al7(PO3OH)2(PO4)4(OH)8(H2O)8·8H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MATYHITE. Chemical Formula: Ca9(Ca0.5□0.5)Fe(PO4)7. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MAUCHERITE. Chemical Formula: Ni11As8. Crystal System: Tetragonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MASLOVITE. Chemical Formula: PtBiTe. Crystal System: Isometric. Learn about its geologic occurrence, habit, and identification.

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

Complete mineralogical data for MASUTOMILITE. Chemical Formula: KLiAlMn2+[Si3AlO10](F,OH)2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MASUYITE. Chemical Formula: Pb(UO2)3O3(OH)2·3H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.