rusty gold
Mining
noun
Gold having a surface coating, typically of iron oxide, that makes it resistant to amalgamation.
Origin
Mid 19th century.
- Australian terrier
- Australian Workers' Union
- Austral Islands
- australite
- Australoid
- australopith
- australopithecine
- Australopithecus
- Australorp
- Austria
- Austrian
- Austrian blind
- Austrian shade
- Austrian Succession, War of the
- Austria–Hungary
- Austro-
- Austro-
- Austro-Asiatic
- Austro-Hungarian Empire
- Austronesian
- AUT
- aut-
- autapomorphic
- autapomorphous
- autapomorphy