Complete mineralogical data for Pendevilleite-(Y). Chemical Formula: Mg2Y3Al(UO2)2(CO3)7(OH)6(H2O)16. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PENFIELDITE. Chemical Formula: Pb2Cl3(OH). Crystal System: Hexagonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for Pengite. Chemical Formula: Pb8Sb3+3(Sb5+O3)9O8. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PENIKISITE. Chemical Formula: BaMg2Al2(PO4)3(OH)3. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PENKVILKSITE. Chemical Formula: Na4Ti2[Si8O20]O2·4H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PENNANTITE. Chemical Formula: Mn2+5Al[(Si3Al)O10](OH)8. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PAXITE. Chemical Formula: CuAs2. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PEARCEITE. Chemical Formula: Ag9Cu((Ag,Cu)6(As,Sb)2S11. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PEATITE-(Y). Chemical Formula: Na12(Y,Na,Ca)12Li4(PO4)12(CO3)4(F,OH)8. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PECORAITE. Chemical Formula: Ni3[Si2O5](OH)4. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.