Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         "Lapideum Regnum" nom. inval. - mineral kingdom
           Class "Petrae" - stones
             glantz [U.R. von Kalbe], [1505?] - galena
             hornstein [U.R. von Kalbe], [1505?] - hornstone
             kies [U.R. von Kalbe], [1505?] - ironstone and pyrites
             1 Order "Vitrescentes" - glassy stones
             2 Order "Calcarii" - calcareous stones
             3 Order "Apyri" - stones unchanged by fire