I would say we should look into adding more attributes to minerals through some sort of module-based system. I talked about it some over at
http://forum.terasology.org/threads/physical-units.1234/ where I hope fairly new contributor
@Palaxin hasn't already disappeared again, he had some good ideas and eagerness
We'd need a bit of code there, so I'm hoping we can get around to it sometime soon, before you run out of work! With a system in place to add more attributes we could start going full time geologist on some of these minerals!
With tons of minerals
and unique features attached to them we could start taking advantages in various other systems. For instance
@Josharias has started applying some limited characteristics in his JoshariasSurvival series, like wood and iron working differently for tools