Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Lapideum - mineral kingdom
         Class Mineræ - minerals
           Order Mercurialia - metals
             Genus Aurum - gold see gold
               1 Aurum nudum
               1.0 Aurum nativum see Aurum nudum
               2 Aurum marmoris nitidi cœrulei, maculis albicantibus
               2.0 Minera auri Lazurea see Aurum marmoris nitidi coerulei, maculis albicantibus
               3 Aurum in mercuriali alio parasiticum
               3.0 Minera auri mixta see Aurum in mercuriali alio parasiticum