The Expanse Summary. Two hundred years in the future, in a fully colonized Solar System, detective Josephus Miller, born in the asteroid belt, is given the assignment to find a missing young woman, Julie Mao.
Definition: Perlite is a form of volcanic glass that is mined all over the world. Horticultural perlite is made by exposing perlite to heat, which causes the trace water contained in the perlite to expand, popping the perlite like popcorn. The result is a very lightweight, white stone-like substance.erlite is considered a nuisance dust by regulatory agencies, which means that efforts should be made to control perlite dust. Eye and mouth protection are recommended to prevent the dust from being ingested. Perlite dust can aggravate existing respiratory conditions and cause eye irritation.
Richlite: Paper-Based Composite Material. Richlite is an FSCÂ® certified product, made from post consumer recycled paper. Sheets of paper are stacked up and saturated with a phenolic resin, then heat and pressure are applied. The resin is thermo-setting and sets permanently with ZERO off-gassing.