No, it's based on the mass calculated for the sun divided by the volume. It is not based on the "GAS" model; it is a simple ratio. Based on this simple ratio, the density of the sun (1.4 g/cm^3) is too low to be silicon (2.33 g/cm^3) much less "ferrite" (Iron, Ferrosilicon - 6.984 g/cm^3), so for the sun's surface to be composed of ferrite, it would seem that there has to be a compensatory area of lower density beneath this layer which implies a hollow sun. Assuming, of course, your model for the surface is correct.

Yet you established it as the primary agent of luminescence at the sun's photosphere, hence one would expect a neon spectra for the sun, not a black-body bell curve. This conjecture appears to be unsupported by evidence.

Now it's calcium ferrite - but wasn't that supposed to be cooled by the Neon? How does it maintain its temperature over the span of a year, much less the thousands of years we have human records of it shining, nevermind the question of what fossil plants could have been getting their energy from.