rusty gold
Mining
noun
Gold having a surface coating, typically of iron oxide, that makes it resistant to amalgamation.
Origin
Mid 19th century.
- motherly
- Mother Midnight
- mother mold
- mother mould
- mother-naked
- mother nation
- Mother Nature
- mother of all ——
- mother of cloves
- Mother of God
- mother of millions
- Mother of Parliaments
- mother-of-pearl
- mother-of-pearl cloud
- mother-of-pearl moth
- mother-of-pearl work
- Mother of Presidents
- Mother of States
- mother of thousands
- mother of thyme
- mother of time
- mother of vinegar
- mother pearl
- mother plane
- mother plant