indian red

noun

1. earth of a yellowish-red color, found especially in the Persian Gulf, that serves as a pigment and as a polish for gold and silver objects.
2. a pigment of that color prepared by oxidizing the salts of iron.

noun

1. a red pigment containing ferric oxide, used in paints and cosmetics and produced by oxidizing iron salts
2. a type of red soil containing ferric oxide, found in S Asia and used as a pigment and metal polish