Subject: is there a formula/theory for calculating mineral Melting/Boiling points?

http://en.wikipedia.org/wiki/List_of_minerals_%28complete%29

Is there a formula, method, or theory for calculating the melting point and 
boiling (disassociaton) points of minerals, perhaps based on element 
content/ratios? I'd like to make a detailed accretion model including all 
possible minerals and I'd hate to have to guess at such figures.

The solar system generator Stargen fails in many ways, 
http://home.comcast.net/~brons/NerdCorner/StarGen/StarGen.html
including only having about 18 molecules factored into it's accretion code, 
basically the terrestrials are made of nothing. 

I wrote something I call "101 errors of Stargen" and I would like to addess 
those issues and write a better program but not knowing when a given mineral 
becomes liquid or dissociates hampers that effort.

Gabriel

I'll send a copy of "101 errors of Stargen" to anyone who asks.
thanks.

Re: is there a formula/theory for calculating mineral Melting/Boiling points?