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white gold
1.
†a. Platinum. Obs.
1764Gentl. Mag. XXXIV. 128/1 (heading) A farther Account of a Metal, called Platina, or White Gold. 1798Nemnich Polygl.-Lex. II. 936 White gold. The platina.
b. A name applied to various silvery-coloured alloys of gold with nickel, palladium, platinum, or silver.
1893Funk's Stand. Dict. s.v. Gold, White gold, an alloy of about five parts of silver to one of gold. 1921Daily Colonist (Victoria, B.C.) 12 Mar. 2/1 Modern Wedding Rings... White Gold Rings, $10. 1940Chambers's Techn. Dict. 382/1 White gold is usually an alloy with nickel, but as used in dentistry this alloy contains platinum or palladium. 1946G. Stimpson Bk. about Thousand Things 242 White gold jewelry nowadays differs from regulation gold, not in the quality or the quantity of gold used, but in the kind of alloy. 1956J. N. Anderson Appl. Dental Materials vii. 78 Casting alloys [of gold] containing a large amount of palladium together with silver are called white golds. 1971Nature 18 June 443/1 Two basically gold-silver alloys were known to the Greeks and Romans: (1) ‘white gold’—a haphazard mixture derived from grains of weathered auriferous ore; and (2) ‘electrum’—an alloy of controlled quality. 1974Country Life 26 Dec. 2002/3 Platinum has largely been superseded by white gold as a jewellery metal. 1980‘E. McBain’ Ghosts ii. 28 One rope choker of eighteen-karat yellow and white gold.
2. Any white substance regarded as valuable.
1966Times 28 Feb. (Canada Suppl.) p. xi/1 Most of the subterranean ‘white gold’ [sc. potash] lies beneath Saskatchewan. 1974G. Jenkins Bridge of Magpies ii. 27 My job was to police the Sperregebiet from the sea... There is..on this God-forsaken shore: a string of rocky little inshore islands coated in bird guano—white gold, they call it. |