building my cube 30x30x30

[Matt]

Originally Posted by asmodeus

the starfire is more softier then regulat glass ,due to the Iron that has been left out in teh starfire. That is what makes it so mouch clearer to see through. The scratches being more visible hasdnothing to do with it...

That has been floating around for a long while, but I've seen the manufactuere (PPG) quoted elsewhere as saying "Starphire glass has the same surface hardness as float glass". Has there been any objective testing? This is purely idle interest on my part, neither having nor planning any starphire tanks.