wichita.edu
…Chapter IX. On the marvelous works of nature, the painter; the forms, figures, and images that she delineates in stones and gems, and their origin and causes. Section II. On transformation. Juices, salts, herbs, plants, trees, animals, and humans transformed into stone, or the power of petrification. Chapter I. On the origin of petrifying juices.…
https://www.wichita.edu/academics/fairmount_las/geology/wparcell/Kircher/Mundus/Vol2Index.php