Two hundred years in the future, in a fully colonized solar system, police detective Josephus Miller (Thomas Jane), who was born in the asteroid belt, is given the assignment to find a missing young woman; Julie Mao (Florence Faivre).
Perlite is made from a mined volcanic glass of the same name. As a raw material it contains water, trapped by the rapid cooling of lava. The moisture vaporizes explosively when heat is applied.
Perlite is a volcanic rock and resembles small pieces of white Styrofoam in potting mixes. Water inside the rock expands when heated at high enough temperatures, which cause the structure of the rock to break down and become light and airy. Perlite aids with drainage to prevent the potting soil from becoming too wet.