Complete mineralogical data for AHEYLITE. Chemical Formula: Fe2+Al6(PO4)4(OH)8(H2O)2·2H2O. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AHLFELDITE. Chemical Formula: Ni(SeO3)(H2O)2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AHRENSITE. Chemical Formula: SiFe2+2O4. Crystal System: Isometric. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AIKINITE. Chemical Formula: PbCuBiS3. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AIOLOSITE. Chemical Formula: Na2(Na2Bi)(SO4)3Cl. Crystal System: Hexagonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for Airdite. Chemical Formula: SrV4+2(PO4)2O2·4H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AJOITE. Chemical Formula: K3Cu20[Si29Al3O64]O12(OH)16·8H2O. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AKAGANEITE. Chemical Formula: (Fe3+, Ni2+)8Cl1.25(OH,O)16·nH2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AKAOGIITE. Chemical Formula: TiO2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for AKATOREITE. Chemical Formula: Mn2+9Al2[Si4O12(OH)]2(OH)6. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.