Complete mineralogical data for MESSELITE. Chemical Formula: Ca2Fe2+(PO4)2(H2O)2. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for META-ALUMINITE. Chemical Formula: Al2(SO4)(OH)4·5H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for Meta-alunogen. Chemical Formula: Al2(SO4)3(H2O)12·2H2O. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for META-ANKOLEITE. Chemical Formula: K2(UO2)2(PO4)2(H2O)2·4H2O. Crystal System: Tetragonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MENSHIKOVITE. Chemical Formula: Pd3Ni2As3. Crystal System: Hexagonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MENZERITE-(Y). Chemical Formula: (CaY2)Mg2[SiO4]3. Crystal System: Isometric. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MERCALLITE. Chemical Formula: K(SO3OH). Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MERCURY. Chemical Formula: Hg. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEREHEADITE. Chemical Formula: Pb47Cl25O24(OH)13(BO3)2(CO3). Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for MEREITERITE. Chemical Formula: K2Fe2+(SO4)2(H2O)4. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.