Assertion: gold | /r/CapableOf | settle to the bottom
Facets:
Source sentences:
text: A modern sluice box made of metal; in its base are the riffles used to catch gold settling to the bottom
text: The gold is heated in a furnace with silica, borax and soda ash which soaks up most of the impurities, forming a slag which rises to the top of the furnace while the heavier gold settles to the bottom.