In article >,
Sqwertz > wrote:

> On Sun, 20 Sep 2009 10:19:12 +1200, Miche wrote:
>
> > Here's one.
> >
> > http://maps.google.com/maps?f=q&sour...=lake+grassmer
> > e+new+zealand&sll=-43.061583,171.774588&sspn=0.025178,0.055575&ie=UTF 8&t=
> > h&z=14&iwloc=A
> >
> > The salt is evaporated in open ponds and then refined in a nearby
> > factory.
>
> Almost all refined salt comes from mines, not ponds. A sea salt
> refinery only removes certain impurities, unlike mined salt which is
> purer.

http://en.wikipedia.org/wiki/Salt_production

That's what Wiki says, also. I guess I thought more came from the sea
because there are major plants that produce (or at least used to
produce) a lot of salt from evaporation of sea water and then refining
it, not far from me (in the San Francisco Bay.

--
Dan Abel
Petaluma, California USA