The series premiered on demand on November 23, 2015, and on Syfy on December 14, 2015. A 13-episode second season premiered on February 1, 2017. In March 2017, Syfy renewed The Expanse for a 13-episode third season to air in 2018.
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian.
Both vermiculite and perlite are used in the garden to prevent soil compaction, improve aeration and retain moisture. Theyâre also used in propagation of new plants and seed cultivations, as well as in indoor container growing, composting and on lawns.