shakudon.
/ˈʃakʊdəʊ/ A Japanese alloy of copper and gold. Also attributive.It is often subjected to a chemical process, which produces a blue patina.
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the world > the earth > minerals > types of mineral > native elements and alloys > [noun] > native alloys
iridosmine1827
platiniridium1848
allemontite1850
sysertskite1850
nevyanskite1854
osmiridium1854
shakudo1860
bismuth-silver1863
telluric bismuth1866
wehrlite1874
josephinite1892
society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > alloy of precious metals > gold alloy > types of
white gold1548
red-gold1707
shakudo1860
1860 S. B. Kemish Japanese Empire 114 The beautiful work called syakfdo, in which various metals are partly blended, partly combined, producing an effect much resembling fine enamel.
1878 Jrnl. Applied Sci. Apr. 9 61/2 The dark blue colour..is that of the Shakudo, composed of copper, and three or four per cent. of gold.
1911 Encycl. Brit. XV. 179/2 To apply a lining of silver to a shakudo box.
1981 G. MacBeth Kind of Treason ix. 91 The little black cups of the nanako on the shakudo grounds.
This entry has not yet been fully updated (first published 1913; most recently modified version published online March 2021).
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n.1860