The Khewra Salt Mine, here in the Punjab region of Pakistan, is the second largest salt mine in the world. The pink salt comes from remnants of ancient seabeds that crystallized 600 million years ago.

KHEWRA, Pakistan, (AFP) - A centuries-old salt mine in Pakistan is offering experimental asthma therapy, attracting patients from all over the world. Khewra, billed as the world's second largest salt ...

The mining project will be headed by the state-owned National Engineering Services Pakistan (NESPAK) and the Mines and Minerals Department Punjab, and is expected to be major milestone for the ...