[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Minerals and Metals in Ancient India](https://indike.org/pramana/ins.science.biswas-1996) › v2.c51.2 # Minerals and Metals in Ancient India v2.c51.2 Minerals and Metals in Ancient India v2.c51.2 - **Language:** English ### [v2.c51.2](https://indike.org/pramana/ins.science.biswas-1996.v2.c51.2) \*Akik\* : agate \*Adrija\* : bitumen \*Abhraka\* : mica \*Amla\* : acid \*Arka\* : sunstone \*Aśmasāra\* : metallic extract, pig iron (?) \*Ājiva\* : alloying element to harden \*Ārakūṭa\* : brass \*Indragopa\* : golden beryl or zircon (?) \*Indranīla\* : sapphire \*Utpala\* : greenish-blue aquamarine \*Audbhida\* : plant ash alkali \*Kajjali\* : cinnabar \*Kankuṣṭha\* : tin ore (?) \*Kankuṣṭam\* : purgative soil with Mg/Na sulphate \*Kaṃsa\* : bronze, bell-metal \*Kaṃsa-Mākṣika\* : coarse grained arseno-pyrite \*Karuṇḍaka\* : crimson-yellow ruby - [Previous: v2.c50.126](https://indike.org/pramana/ins.science.biswas-1996.v2.c50.126) - [Next: v2.c51.3](https://indike.org/pramana/ins.science.biswas-1996.v2.c51.3) - [Up: v2.c51](https://indike.org/pramana/ins.science.biswas-1996.v2.c51) --- Source: [https://indike.org/pramana/ins.science.biswas-1996.v2.c51.2](https://indike.org/pramana/ins.science.biswas-1996.v2.c51.2) · Pramāṇa