I think this would be helped a little if the geology of the new version isn't so odd, though.
You know that home civilization that only has galena and sphlerite? I'm not even sure how they have THAT much. The
entire mountain range they live on has no metals. The
entire mountain range. Nothing, not iron, not coal, not even microcline, as far as I can tell. It's just a giant mineral void.
That just shouldn't be possible.
I remember a
thread on scarcity of resources, and they had a good link to
this map. Notice the whole "people mine in mountains" trend, where mountains, being formed either by volcanic activity (which has plenty of neat metals), or geological folding of techtonic plates, exposing coal and iron deposits tends to expose plenty of minable minerals.
We shouldn't be getting vague surveys saying "this is a mountain, maybe some metal might be somewhere inside", we should be getting a readout of
how many overlapping veins there are, because there shouldn't be these giant desloate swaths of land with no metal whatsoever in them, and overlapping veins.
On top of that, yes, mountains generally tend to have some exposed minerals for anyone to see, so at the very least, before settling, we should have a clue as to at least one mineral in a mountain, just because it's on an exposed rock face.