[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.c34.220 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c34.220 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c34.220 - **Language:** English ### [v2.c34.220](https://indike.org/pramana/ins.science.ray-1902.v2.c34.220) The Rasaratna-samuchchaya divides the mineral kingdom (Earth-substances, simple and compound) into the following classes :- (1) The eight Rasas, mica, pyrites, bitumen, blue vitriol, calamine, etc. (2) The eight Upa-rasas (useful in operations of mercury), sulphur, red ochre, green vitriol, alum, orpiment, realgar, collyrium, and medicinal earth, to which may be added the eight Sádhárana Rasas, sal-ammoniaç, cowrie, cinnabar, rock vermilion, etc. (3) The gems, diamond, emerald, sapphire, cat's eye, sun-stone, moon-stone, pearl, etc. (4) The metals, gold, silver, iron, copper, lead, tin, and the alloys—brass and bell-metal. Other Earth-substances are six salts, three alkalis, mineral earths, and several poisons ( cf. vol. I, pp. 32-98 ). - [Previous: v2.c34.219](https://indike.org/pramana/ins.science.ray-1902.v2.c34.219) - [Next: v2.c34.221](https://indike.org/pramana/ins.science.ray-1902.v2.c34.221) - [Up: v2.c34](https://indike.org/pramana/ins.science.ray-1902.v2.c34) ## Cites (1) - [Rasaratnasamuccaya](https://indike.org/pramana/in.med.rasa.samuccaya.pramukha.rasaratnasamuccaya) — Vāgbhaṭa (alchemist), Sanskrit --- Source: [https://indike.org/pramana/ins.science.ray-1902.v2.c34.220](https://indike.org/pramana/ins.science.ray-1902.v2.c34.220) · Pramāṇa