Question

(c) What is rock salt? Why is it brown in colour?
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Answer 1

Answer:

Rock salt tends to be the industrial name used for Halite. When very hot temperatures in the area evaporated the waters very slowly they left large salt deposits under the earth. As the water evaporated and the salt crystals started to form they got their brownish colour from sand blown in from eastern deserts.

Answer 2

Answer:

Rock salt tends to be the industrial name used for Halite. When very hot temperatures in the area evaporated the waters very slowly they left large salt deposits under the earth. As the water evaporated and the salt crystals started to form they got their brownish colour from sand blown in from eastern deserts.