What was the source of the blue gem stone, lapis lazuli, for the people of Harappan culture?

1.Gujarat

2.Maharashtra

3.Iran

4.Afghanistan

ANSWER : Afghanistan

Lapis lazuli or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.

As early as the 7th millennium BCE, lapis lazuli was mined in the Sar-i Sang mines, in Shortugai, and in other mines in Badakhshan province in northeast Afghanistan.