Not really, sorry to argue the point - not that it matters.
Some but not all (and don't ask me which as I don't know)fall out of the brine before the sodium chloride, which is a funny term as it does not fall it rises to the top and is blown off by the wind.
If you go to lake grassmaire the wire fences are covered in a cement like product, this is 1 or more of the chemicals on the list.
And thats why it's no good to use as a salt mix for marine organisms, you even have to add stuff to it if you want to grow brine shrimp to adults..