Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Lapideum - mineral kingdom
         Class Petræ - stones
           Order Apyri - stones unchanged by fire
             1 Genus Asbestus
             2 Genus Amiantus
             3 Genus Ollaris
             4 Genus Talcum - talc
             5 Genus Mica - mica see mica