Sources of Hydrogen and Oxygen for settlements

On 10/26/06, ANTIcarrot wrote:
(...)
> The mineral contains oxygen, titanium and iron. Hydrogen cannot be extracted
> from it, and the only way you can make water is to supply your own hydrogen.
(...)

Actually there are some small amounts of solar wind hydrogen trapped
in hydrogen-absorbing minerals (mainly titanium-based). By
(metaphorically) squeezing huge amounts of lunar sand you could
extract some hydrogen and synthesize some water. Conceivably it is
also possible to design man-made "hydrogen traps" that would stay in
surface collecting solar hydrogen. Of course the whole process may be
very costly, and lunar water done that way would be *very* expensive.