[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray](https://indike.org/pramana/ins.science.ray-1956) › c15.28 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c15.28 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c15.28 - **Language:** English ### [c15.28](https://indike.org/pramana/ins.science.ray-1956.c15.28) "That which is of the colour of the petals of lotus, ductile, glossy, incapable of making any continuous sound, and glittering, is the best. That which is reddish yellow is of middle quality; and that which is red is of low quality" (85) - [Previous: c15.27](https://indike.org/pramana/ins.science.ray-1956.c15.27) - [Next: c15.29](https://indike.org/pramana/ins.science.ray-1956.c15.29) - [Up: c15](https://indike.org/pramana/ins.science.ray-1956.c15) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c15.28](https://indike.org/pramana/ins.science.ray-1956.c15.28) · Pramāṇa