Higher mining skill allows you to harvest more difficult minerals nodes around the world. If you cannot harvest a specific mineral, then increase your skill by mining easier to mine minerals in lower level areas.
Recipes of nforce-void0 of 17 known
Smelt Azerothium
Smelt Bronze×2
Smelt Copper
Smelt Dark Iron
Smelt Elementium
Smelt Gold
Smelt Heavy Thorium
Smelt Iron
Smelt Mithril
Smelt Silver
Smelt Steel
Smelt Thorium
Smelt Tin
Smelt Truesilver
Lodestone
Molten Foundry
Rock Garden