Natura - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Lapideum Regnum nom. inval. - mineral kingdom
         Class Petrae - stones
           Order Vitrescentes - glassy stones
             1 Genus Cos
             2 Genus Qvartzum [U.R. von Kalbe], [1505?] - quartz
             3 Genus Silex - silica