As one of a handful of mineralogists on Hacker News (and I suspect that Timetric's pretty much cornered that market), I'm delighted to see phase diagrams on her

As one of a handful of mineralogists on Hacker News (and I suspect that Timetric's pretty much cornered that market), I'm delighted to see phase diagrams on here! This stuff is utterly fascinating. OK, I'm biased, I did my doctoral thesis on diffusion networks in silica glass, but things like the ortho/clinopyroxene or feldspar systems - http://en.wikipedia.org/wiki/Feldspar http://en.wikipedia.org/wiki/Feldspar - are just really beautiful. (I mean, look at it! http://en.wikipedia.org/wiki/File:Albite_-_Crete_(Kriti)_Island,_Greece.jpg http://en.wikipedia.org/wiki/File:Albite_-_Crete_(Kriti)_Isl.... Not as spectacular as APoD, OK, but I don't regret my time in science.)