Pack in question; Direwolf20 1.10.
In what range of depth will I find silver and bauxite often? I plan on making silver weapons (A scythe,primarily),and bauxite's my only source of aluminium,and I'll be needing that for casts,and likely,machinery.
Not sure but I found a lot mining at 12. Then I switched to the vertical digger? From actually additions. It gets a decent amount.