I don't have a listing of what each book unlocks.

Looking at my own Folklore section of the Gathering Log, I can give you *some* information.

Mining
Dravanian book : Aurum Regis Ore, Blue Quartz
Abalathian book : Red Alumen, Sun Mica
Coerthan book : Violet Quartz, Astral Moraine

Botany
Coerthan book : Dravanian Paprika, Vanilla Beans

I only have those four books so far.