Mining Fortune

is a stat that is identical to the and  stats. It increases your chance to get multiple drops from mining ores (It doesn't affect the amount of Cobblestone and other blocks not considered an Ore), and can be increased with your level and HotM upgrades. It functions similar to, in that every 1 of it you get it adds an extra 1% chance to get double drops. Anything above 100 gives a chance for triple drops, anything above 200 gives a chance for quadruple drops, etc.

Achieving Maximum Mining Fortune
By getting all of the following: mining 60 (240 mining fortune); lvl 100 Epic or Legendary Scatha Pet (125); full set of recombobulated Divan Armor with the Jaded reforge and Perfect Jade applied to all pieces twice (120 armor + 120 reforge + 400 Perfect Jade = 640); Auspicious (8) Divan's Drill(150) with Fortune 3 (30) and Perfect Jade(50) applied to it; Ring or Artifact of Power with Perfect Jade Gemstone (25); Maxed Fortune (250), Mining Fortune II (250), Mining Madness (100), Skymall (50) and Front Loaded (100) HotM upgrades; Mineral Talisman (3); Mining Pumpkin (25) and Sunny Side Goblin Omelette(50), player can get total of 2096 giving 100% chance to get 21 times more drops and 96% chance to get 22 times more drops.