What was the source of the blue gem stone, lapis lazuli, for the people of Harappan culture?
Afghanistan. was the source of the blue gem stone, lapis lazuli, for the people of Harappan culture.
Lapis lazuli is found in limestone in the Kokcha River valley of Badakhshan province in north-eastern Afghanistan, where the Sar-e-Sang mine deposits have been worked for more than 6,000 years.