from The Century Dictionary and Cyclopedia
- n. Gold in the form of fine particles carried away by running water. See float-mineral.
Sorry, no etymologies found.
It is often in the form of spangles called float-gold and flour-gold.
A handful, taken from a few inches below the surface, shows glittering specks of 'float-gold,' scales so fine that it was difficult to wash them by machinery.
There will not be much loss by float-gold, flour-gold, or paint-gold, the latter thus called because it is so fine as to resemble gilding.