Oct 27, 2020· Perlite was first discovered in 1824 by the German geologist Ferdinand von Hochstetter, who named ... By Jimmy Bain. August 12, 2021. Nature and Environment. Pearlite Formation Process. Pearlite is an amorphous volcanic glass that has a relatively high water content, typically formed ... By Jimmy Bain. July 7, 2021. Crafts.