Mithril

 is a resource in the Mining Collection that can be obtained in the Dwarven Mines by mining Mithril veins, using a pickaxe with Breaking Power 4 or higher.

Obtaining
Mithril can be mined from Mithril Veins, where the inside is harder to break and gives more Mithril, but the outside breaks quicker and gives 1 Mithril. In order of easiest to hardest to mine, these veins are made of Cyan Hardened Clay, Gray Wool, Dark Prismarine, Prismarine Brick, Prismarine, and Light Blue Wool. All ores in the vein give 45 mining exp. There are some veins however, which are not purely Mithril and only give 20 mining exp.

Mithril Vein

The amount of Mithril you receive from mining ores is as follows: NOTE: these multipliers apply multiplicatively with Mining Fortune.

Usage
Mithril is used to upgrade Mithril Minions, to craft Enchanted Mithril, and to create Refined Mithril in The Forge.

Mithril sells for a relatively high amount of money at the Bazaar and therefore is a good money making method for early game players.

Trivia

 * Mithril is a material from J.R.R Tolkien's Middle Earth universe. Dwarves forged it into armor that cannot be pierced by even the strongest blades. This is referenced not only shown by the name of the ore but also by the Mithril Coat, a direct reference to Tolkien's Middle Earth Mithril.
 * Mithril is also an ore in Terraria.