Mine gem/ore levels?

[Lexx]

Im not really a big fan of mining most of the time, but I will do it when I need things from there. It would be nice to have some sort of guide to what levels each ore/gem spawn on so I could have an idea of how long I still have to mine for and if later I forget, what checkpoint I should go to.

I've looked on the wiki, this forum and the steam community page. All I've found was just a small unfinished thing which just had placeholders in place of the floors on the steam community guides.  

Does anyone have any idea on what the possible levels could be?

Also do diamonds spawn on certain levels or are they just from npcs and maybe the mine checkpoints?

[pixel]

Diamonds are more likely to spawn on lower levels with lava.

Go to the second mine, floor 76 is a fixed location that spawns lots of treasure chests, which are a good source for diamond hunting. Otherwise I just recommend trying to go as deep as possible.

Bringing Glimmer or Jag is a huge boost.

[Lexx]

thank you!
what levels have lava by the way? are they also on certain levels or are they like a biome or something?

[pixel]

You can tell if a level will be a lava biome if the stairs leading down have orange cracks on them, and it'll say "you feel a wave of blasting heat!" or something to that effect.

I'm not 100% sure, but it seems to me that levels 1, 26, 51 and 76 have fixed biomes, and then the rest are randomly determined by what stairs are generated.