[Natura] - nature
   crystal-kingdom
     minerals constituting rocks
       Quartz, and Silicates containing alumina, without water
         quartz [SiO2] [U.R. von Kalbe], [1505?]
           01 limpid quartz
           02 amethyst
           03 agate
           04 chalcedony
           05 flint
           06 hornstone
           07 lydianstone
           07.0 basanite see lydianstone
           08 jasper
           09 sandstone
           09.0 quartzite see sandstone
           10 ordinary sand