Complete mineralogical data for Auropolybasite. Chemical Formula: (Ag9Au)(Ag6Sb2)S11. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AURORITE. Chemical Formula: Mn2+Mn4+3O7(H2O)3. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AUROSELENIDE. Chemical Formula: AuSe. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AUROSTIBITE. Chemical Formula: AuSb2. Crystal System: Isometric. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARSMIRANDITE. Chemical Formula: Na18Cu12Fe3+(AsO4)8O8Cl5. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARTHURITE. Chemical Formula: CuFe3+2(AsO4)2(OH)2(H2O)2·2H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARTINITE. Chemical Formula: Mg2(CO3)(OH)2(H2O)3. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARTROEITE. Chemical Formula: PbAlF3(OH)2. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARTSMITHITE. Chemical Formula: (Hg+2)2Al(PO4)1.74(OH)1.78. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARUPITE. Chemical Formula: Ni3(PO4)2(H2O)6·2H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.