Black gold

From WebRef.org
Jump to navigationJump to search
  1. A slang American term referring to crude oil.
  2. Syn: Maldonite
  3. Placer gold coated with a black or dark-brown substance (such as a film of manganese oxide) so that the yellow color is not visible until the coating is removed. AGI

Source: Dictionary of Mining, Mineral, and Related Terms


Sponsor: Download ISO/TS 9002:2016