[MikeG]

Originally Posted by Easy

Mike a lot of material roughly fit those densities.
http://www.engineering.uiowa.edu/~cf...bles/1-86B.pdf

Of course, but do they also match the melting point and other parameters? If you can propose a specific material that does, I'd be interested to see it. So far I've found data on two types of glass that at least roughly match the parameters we're looking for.