The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 237
Gold in Central and South America Panning Amalga- mation Wohlwill process Examin- ing arc spectrum Organic gold. Gold Products and Production Gold possesses several outstanding qualities that have made it exceptionally valuable ...
Gold in Central and South America Panning Amalga- mation Wohlwill process Examin- ing arc spectrum Organic gold. Gold Products and Production Gold possesses several outstanding qualities that have made it exceptionally valuable ...
Page 239
... Gold Production ( in 000 ounces ) 1970 * 549 † 1965 1967 1969 South Africa 33,521 33,520 34,314 35,289 U.S.S.R. † 5,518 6,253 6,857 7,131 Canada 3,956 3,250 2,792 2,566 U.S. ... Gold Products and Production 239 World Gold Production ...
... Gold Production ( in 000 ounces ) 1970 * 549 † 1965 1967 1969 South Africa 33,521 33,520 34,314 35,289 U.S.S.R. † 5,518 6,253 6,857 7,131 Canada 3,956 3,250 2,792 2,566 U.S. ... Gold Products and Production 239 World Gold Production ...
Page 240
... gold . Dental use . Dental applications include wrought and cast gold alloys with a gold content of 60 percent or more along with silver , copper , and sometimes platinum ; the rest of the alloy consists of palladium . Some of these ...
... gold . Dental use . Dental applications include wrought and cast gold alloys with a gold content of 60 percent or more along with silver , copper , and sometimes platinum ; the rest of the alloy consists of palladium . Some of these ...
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