[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D.](https://indike.org/pramana/ins.science.ray-1902) › v1.c24.s2.42 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c24.s2.42 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c24.s2.42 - **Language:** English ### [v1.c24.s2.42](https://indike.org/pramana/ins.science.ray-1902.v1.c24.s2.42) Rasasindura . . . . . 132 Rasāyana . . . . . viii, 80 definition of, . . . . . 32, 53, 80 Rasi (aqua fortis) . . . . . 187, 250 Rasot . . . . . 54 Ratnas ( gems ), the . . . . . 79 Realgar . . . . . 45, 46, 54, 55, 89 Red ochre . . . . . 46, 54, 55, 89 Reh . . . . . 244 Ritikā . . . . . 114 Rock-salt . . . . . 46,55 Romaka . . . . . 108 Romakānta . . . . . 44, 128, 243 Rubicelle . . . . . 137 Rubi spinel . . . . . 137 Rungwalā . . . . . 207 - [Previous: v1.c24.s2.41](https://indike.org/pramana/ins.science.ray-1902.v1.c24.s2.41) - [Next: v1.c24.s2.43](https://indike.org/pramana/ins.science.ray-1902.v1.c24.s2.43) - [Up: v1.c24.s2](https://indike.org/pramana/ins.science.ray-1902.v1.c24.s2) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v1.c24.s2.42](https://indike.org/pramana/ins.science.ray-1902.v1.c24.s2.42) · Pramāṇa