Grinding

Grinding is a Miners skill related to sacrificing ores for crafting materials.

Levels

 * Level 0 : Ability to use Tier 1 Ore Grinder.
 * Level 0 : Ability to grind Cobblestone.
 * Level 5 : 0.5% chance to gain 2x Grinding XP.
 * Level 10 : Ability to grind Coal.
 * Level 15 : 1.5% chance to gain 2x Grinding XP.
 * Level 15 : Ability to use Tier 2 Ore Grinder.
 * Level 20 : Ability to grind Iron Ore.
 * Level 25 : 2.5% chance to gain 2x Grinding XP.
 * Level 30 : Ability to grind Gold Ore.
 * Level 30 : Ability to use Tier 3 Ore Grinder.
 * Level 40 : Ability to grind Redstone.
 * Level 45 : Ability to use Tier 4 Ore Grinder.
 * Level 50 : Ability to grind Lapis Lazuli.
 * Level 60 : Ability to grind Diamond.
 * Level 60 : Ability to use Tier 5 Ore Grinder.
 * Level 70 : Ability to grind Emerald.
 * Level 80 : Ability to grind Quarlz.
 * Level 80 : Ability to use Tier 6 Ore Grinder.
 * Level 90 : Ability to grind Obsidian.
 * Level 100 : +20% chance to grind rewards from tiered ores.
 * Level 110 : Ability to use Tier 7 Ore Grinder.

Guide
Get ~18-20 stacks of tiered ore related to your grinding level. Grind. Repeat until maxed. Crafting armor's helmet gives a bonus to grinding xp gain.