> >mineral- and vitamin-dense herbs
>
> Great!  I've often wondered about this.  Can you give us a list, please,
or
> a site?

check out http://www.ars-grin.gov/duke/

you can look up what compounds are in herbs etc, including minerals. ive
done no systematic survey, but you notice after a while some herbs are high
in some minerals...eg germanium in garlic, boron in angelica,  silica in
horsetail is well-known.

andrew