Lompoc, California. Diatomite mining. Shots of: a crane lifting a large amount of rock, tractors and shovels moving and sifting the mineral, diatomite being poured , moving through on trains, camera is train;’s POV. Shots of a doctor measuring and monitoring a worker. More shots of: a worker scanning the powder as it goes through the plant, a worker working with a mask on, a forklift driver bringing in sacks, a powerful vacuum cleaner sucking up dust. Segment ends with mineral being taken away on train cars.