Does this cave exsist

[Tarnim]

Ok well over the weekend I went into a harvesting frenzy because I got sick of having no cash. But at lvl 24 it is hard for me to find pyrite. Now I know of several Iron and Tin mixed mob free caves that are good for harvesting and I wanted to know if any harvesters or anyone really has found one for iron/pyrite just pyrite or just iron.

Don't need to tell me where exactly it is if you know of one (of course it'd be appreciated if you gave hints) but i want to know if my 10 hour search was ultimately in vain or if i should continue.

[Therian]

Not mob-free, but you can avoid it for harvesting purposes - go to the Strand of the Ancients and you'll find quite a few iron spawns at the edges of the hills.

Southwatch also has quite a few iron spawns and pyrite spawns along the safe areas (ride up the hill and you'll encounter a few).