"It is claimed that the “magic salt” is coming from the Karakorum (Ferreira, 2002). However, as pointed out by the group TourismWatch (No.28 and No.30) there is no salt mine to be found anywhere in this Himalayan region. Most of the salt was coming from the second largest salt mine in the world, in Pakistan.
"After the boom began, it was found that even ordinary road salt was being sold as “Himalaya Salt” by ruthless opportunists."
I used to use grey celtic salt from France. I became disillusioned about that when I read that the reason it was grey and oily/wet may have to do with the water pollution from spilled fuel oil in that area of the sea.
Then I bought Himalayan salt from this place,http://www.americanbluegreen.com/ because it was supposed to be authentic. However, instead of the pretty pink salt shown on the website, the salt I received did indeed look a lot like plain white rock salt, with a very few pink flecks included. How do you know it's authentic?
Now I'm using Redmond Real Salt but I don't like the amount of grit/dirt in it. I hate the sudden crunch when I'm eating soft foods. I especially hate using it on eggs, where it feels a lot like bits of eggshell. And I'm pretty sure that grinding grit/dirt is not good for my teeth.