Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       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
               2.0 [crystallum Theophrastus - crystal] see Genus Qvartzum [U.R. von Kalbe], [1505?]
               2.0 ["krustallos" Theophrastus - crystal] see Genus Qvartzum [U.R. von Kalbe], [1505?]
               2.0 ["quertz" [U.R. von Kalbe], [1505?] - quartz] see Genus Qvartzum [U.R. von Kalbe], [1505?]
               3 Genus "Silex" - silica