Halite is the mineral name for the substance that everyone knows as salt. Its chemical name is sodium chloride, and a rock composed primarily of halite is known as rock salt. The pink colouration is caused by various impurities and on larger specimens are often carved out and used as lamps.
Country of Origin: Pakistan.
Price is for one chunk similar to those pictured. Approximate size 3 to 6cm.
Better image coming soon.