Talk:Maud Pie/@comment-7345250-20151025000004

Alright, I completely lost it when Maud identified Applejack's andesite, so now we know that there isn't as much basalt in Equestria as I once thought. (Could Tom be an andesite...?)

Ah, and when she described the rapid cooling of obsidian, which is the crux of its formation. And also when she identified corundum as a mineral harder than quartz, which is also just sooooo true.

Rocktors-in-training of Equestria, unite!