SAND n. 10 definitions
t sand. -- Sand bed, a thick layer of sand, whether deposited naturally or artificially; specifically, a thick layer of sand into which molten metal is run in casting, or from a reducing furnace. -- Sand birds (Zoöl.), a collective name for numerous species of limicoline birds, such as the sandpipers, plovers, tattle…
SCORIFY v.
To reduce to scoria or slag; specifically, in assaying, to fuse so as to separate the gangue and earthy material, with borax, lead, soda, etc., thus leaving the gold and silver in a lead button; hence, to separate from, or by means of, a slag.