All this seems to be drifting well away from the interests of the original poster, and might be better placed in a separate thread.
IMHO it's very speculative silicate-melt theory.
>So all you have to do is look at the first ionization energy for each element to determine how quickly it will lose its first orbital atom.
[I assume that is a typo for 'how easily an atom loses its first electron'.]
Absolutely true, but to take an example: the sodium atoms in the nepheline syenite became sodium ions before they
were incorporated into the nepheline syenite crystal (after all it is an ionic crystal). That's probably millions of years ago.
>We call it the melt temp in glaze, but in reality it is when it loses it first atom (donor/ reductant/oxidation).
[I assume that is a typo for 'when the atom loses its first electron'.]
Err, I don't think so. The sodium in the nepheline syenite starts out as Na+ and stays like that through any melting process.
I would suggest that most atoms in a glaze don't change their level of ionisation from that in the raw ingredients.
[There are obviously a few exceptions, mostly involving transition metals.]
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