[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) › v2.c32.s8.t1.7 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s8.t1.7 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s8.t1.7 - **Language:** English ### [v2.c32.s8.t1.7](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s8.t1.7) The mahārasas are 8 in number; e. g. mercury, cinnabar, sasyaka, rasaka, &c. ... ... ... the rasas are mica, green vitriol and rājāvarta, &c. ... ... ... sulphur, orpiment and realgar, &c. are the uparasas as regarded by learned teachers. Cf. Vol. i, pp. 79 and 89. - [Previous: v2.c32.s8.t1.6](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s8.t1.6) - [Next: v2.c32.s8.t1.8](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s8.t1.8) - [Up: v2.c32.s8.t1](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s8.t1) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v2.c32.s8.t1.7](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s8.t1.7) · Pramāṇa