tandemcap wrote:
> Thanks all for the replies.
>
> Alton Brown had softball sized crystaline formations.
>
> Perhaps Halite is the answer.
>
> fm

I seriously doubt that, halite is raw salt ore as it comes from the
mine, unpurified and unfit for human consumption, in fact it will even
contain bits of earth and stone... it's what's used for road salt. But
ordinary table salt can be made to form large crystals same as sugar
can form rock candy.

Sheldon