I guess but ain't there places like England that have both tin and copper ore right near each other? also one time I traveled like 3 or 4 days straight trying to find hematite/limonite/magentite and still couldn't find any? meanwhile IRL I can take a 15 minute walk to some old gravel pits behind my house and find shit tons of (admittedly not high grade) iron ore of some kind (I don't exactly what kind it is, I spent most of high school fighting the system and geology is not my strong area) and even the odd chunk of native copper every now and then... yes I'm a blacksmith IRL...