See also: colo(u)r (def. 2) flour gold
- 1859  The coldness of the water thickens the quicksilver so much as to prevent full half of the fine gold being taken up or amalgamated as it would be when the weather is warm.
- 1935  . . . these Orientals being admitted experts at catching fine gold on claims that more impatient and less skilful whites abandoned in contempt.