Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Lapideum - mineral kingdom
         Class Mineræ - minerals
           Order Mercurialia - metals
             Genus Zincum
               1 Zincum fertile petrosum violaceum
               1.0 Minera Zinci see Zincum fertile petrosum violaceum
               2 Zincum fertile petroso-vitriolaceum
               2.0 Lapis atramentarius see Zincum fertile petroso-vitriolaceum
               3 Zincum sterile terreum
               3.0 Calaminaris see Zincum sterile terreum
               4 Zincum sterile micaceum
               4.0 Molybdæna see Zincum sterile micaceum