During mining and gathering resources I occasionally come upon some nodes that offer "collectables". A screen comes up and I click some different things and usually end up with a bunch of non-stackable items. The names of these include:

yellow kudzu root
Rarefied Larch log
Rarefied Limonite
Rarefied Chalcocite
Peaks Pigment

I no longer bother gathering these things because they take up a lot of storage space.

Am I missing something here? Is there something I can do with these things?