Complete mineralogical data for PETERSITE-(Y). Chemical Formula: YCu6(PO4)3(OH)6·3H2O. Crystal System: Hexagonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETEWILLIAMSITE. Chemical Formula: (Ni,Co)30(As5+2O7)15. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETITJEANITE. Chemical Formula: Bi3(PO4)2O(OH). Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETŘÍČEKITE. Chemical Formula: CuSe2. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETROVICITE. Chemical Formula: PbHgCu3BiSe5. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETROVITE. Chemical Formula: Na12Cu2(SO4)8. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

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

Complete mineralogical data for PETRUKITE. Chemical Formula: (Cu,Ag)2(Fe,Zn)(Sn,In)S4. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETSCHECKITE. Chemical Formula: U4+Fe2+Nb2O8. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for PETEDUNNITE. Chemical Formula: CaZn[Si2O6]. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.