Word: quartz
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...surprisingly, Kroyer's creations have since run a mad scientist's gamut. Synopal originally sprang from a Danish asphaltmaker's plea for something to give blacktop paving the high night visibility and skid-resistance of rival concrete. Kroyer promptly invented a white, synthetic, quartz-like crushed "stone"-actually a form of crystallized glass-to do the job. Seeing other possibilities, he has sold the stone as brewery and municipal water filters, made it into bricks to build 50 gleaming white villas around Denmark, in hopes of promoting them as a status symbol...
...creditable collection of Minie balls, spent shells, uniform buttons, and other bits and pieces of unidentifiable metal left behind by Yankee soldiers during the Battle of Atlanta. However, the prize of his collection was a relic of an earlier war-an arrowhead crudely fashioned from a piece of quartz crystal. Somehow, our way sounds like more...
Mercurial Change. To build so perfect a gyroscope, Stanford Physicists William Fairbank and Francis Everitt will use a sphere of quartz coated with niobium, a metal that becomes a superconductor and shows no resistance to electric current when cooled to extremely low temperatures. The sphere will be placed inside an evacuated quartz shell, also coated with niobium, and suspended in an electrostatic field. Suspending it in this manner will allow it to spin in a near-perfect vacuum without touching anything; it will be free from all friction. The gyroscope container will be kept in a bath of liquid helium...
...population; what was once useless scrub in the central state of Goiás is now pasture land for 4,000,000 head of cattle. And prospectors fanning out from the road have found a vast mineral potential, with deposits of nickel, tin, lead, zinc, copper, gold, diamonds and quartz...
...just scuffing a shovel in the dirt might produce treasures to dream about. To prove it, communities like Diamantina, Turmalina, Esmeralda, Ametista dot the country. Last week the scene was Cristalina (pop. 3,800), an interior town some 60 miles south of Brasilia, once the center of a fabulous quartz-crystal boom and now devoted largely to agriculture and cattle raising...