|Article||Science & Speculation|
In "Occupation", when Lucas, Weaver and Hooper are looking out over the valley where they plan to detonate the pyrosonic, Hooper comments "This whole valley is rich with meteoric ore. There are impact craters everywhere, you just can't see 'em because of the canopy." Lucas asks "How much is out there?" and Hooper responds "couple o' hundred thousand tons, easy."