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.

Complete mineralogical data for Arzrunite. Chemical Formula: Pb2Cu4Cl6(OH)4 (SO4)·2H2O. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARROJADITE-(SrFe). Chemical Formula: SrFe2+(CaNa2)Fe2+13Al(PO3OH)(PO4)11(OH)2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARSENATROTITANITE. Chemical Formula: NaTi(AsO4)O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARSENBRACKEBUSCHITE. Chemical Formula: Pb2(Fe3+,Zn)(AsO4)2(OH,H2O). Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for ARSENDESCLOIZITE. Chemical Formula: PbZn(AsO4)(OH). Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

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