The Collaborative International Dictionary
jeweler's rouge
Rouge \Rouge\, n. [F.]
(Chem.) A red amorphous powder consisting of ferric oxide. It is used in polishing glass, metal, or gems, and as a cosmetic, etc. Called also crocus, jeweler's rouge, etc.
A cosmetic used for giving a red color to the cheeks or lips. The best is prepared from the dried flowers of the safflower, but it is often made from carmine.
--Ure.
Usage examples of "jeweler's rouge".
The spider disintegrated into shimmering dust finer than jeweler's rouge.