Complete mineralogical data for MACKINAWITE. Chemical Formula: (Fe,Ni)9S8. Crystal System: Tetragonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MACPHERSONITE. Chemical Formula: Pb4(CO3)2(SO4)(OH)2. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MACQUARTITE. Chemical Formula: Pb7Cu2(CrO4)4[SiO4]2(OH)2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MACRAEITE. Chemical Formula: KMn2(Fe2Ti)(PO4)4[O(OH)](H2O)11·4H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for Madeiraite. Chemical Formula: Na2Ca2Fe2+2Zr2[Si2O7]2O2F2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MADOCITE. Chemical Formula: Pb19(Sb,As)16S43. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MAGADIITE. Chemical Formula: Na2[Si14O28](OH)2(H2O)6·2H2O. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MAGBASITE. Chemical Formula: KBaMg7Fe3+[Si8O22](OH)2F6. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for Magganasite. Chemical Formula: CuFe3+3(AsO4)3O. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MACDONALDITE. Chemical Formula: BaCa4[Si16O36(OH)2](H2O)6·4H2O. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.