514 
MINERALS YEARBOOK, 1967 
 
 Talc.—The United Sierra Division, Cypms Mines Corp. processed at Grand
Island crude talc produced in California and Montana. The processed material
was used in manufacturing ceramics, cosmetics, floor tile, paint, paper,
rubber, textiles, and toilet preparations; some of the processed material
was exported. 
 
 Vermiculitc.—The Zonolite Division of W. K. Grace & Co. exfoliated
vermiculite for use as concrete and plaster aggregate 
and loose-fill insulation, and for agricultural use. Output increased approximately
33 percent. 
 
METALS 
 
 The American Smelting and Refining Co. (Asarco) refinery in Omaha recovered
lead, gold, silver, antimony, and bismuth from lead bullion and other smelter
products shipped from A~arco plants outside of Nebraska.