A History of Indian Medical Literature v2.c33.108

v2.c33.108

94 Ḍalhaṇa says that is either a kind of stone (pāṣāṇa) for sharpening tools and instruments made of iron, or a precious stone, red in colour (lohitāśman, ratnapradhāna). Compare his remarks ad U.15.26: niśānopala (whetting stone) or padmarāga (ruby). Cakra is of the opinion that kuruvinda means a red precious stone.