Eli5: What gives Himalayan pink salt or black salt or any other natural colored salts their color?

Question

I am aware many minerals are there in the salts and they may or may not have health benefits or flavors but what gives these salts their color is it a particular mix of other mineral salts or any particular element

In: 55

Answer 1

I believe black salt is actually hand made by burning the salt in bamboo shutes multiple times over. What is left is the carbonized remains of the burned wood together with the salt, giving the salt the black color.