[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.c47.64 # Minerals and Metals in Ancient India v2.c47.64 Minerals and Metals in Ancient India v2.c47.64 - **Language:** English ### [v2.c47.64](https://indike.org/pramana/ins.science.biswas-1996.v2.c47.64) \*Galena\* : PbS. Luster metallic. Colour and streak grey. Heavy, sp. gr. 7.4-7.6. Hardness 2-2.5. Sometimes contains native silver and gold. - [Previous: v2.c47.63](https://indike.org/pramana/ins.science.biswas-1996.v2.c47.63) - [Next: v2.c47.65](https://indike.org/pramana/ins.science.biswas-1996.v2.c47.65) - [Up: v2.c47](https://indike.org/pramana/ins.science.biswas-1996.v2.c47) --- Source: [https://indike.org/pramana/ins.science.biswas-1996.v2.c47.64](https://indike.org/pramana/ins.science.biswas-1996.v2.c47.64) · Pramāṇa