Mithril Powder

Mithril Powder is a collectable and non-item that is used to upgrade Tier 7 and below Heart of the Mountain perks, including all perks at and below Tier 5.

Obtaining
It can be obtained from many different things, as listed below:
 * Mining Mithril.
 * Participating in Dwarven Mines events.
 * Claiming Dwarven Mines Commissions.
 * Fighting Dwarven Mines mobs.
 * Finding a Dark Monolith
 * Giving the item Fetchur asks for.
 * Completing the Puzzler's puzzle.
 * Two Heart of the Mountain perks, Sky Mall and Daily Powder, directly reward additional powder.
 * The Sky Mall perk grants a chance to earn 15% extra powder for an entire SkyBlock day.
 * The Daily Powder perk grants up to 3964 powder at level 100 (400 at level 1) for the first Mithril Ore mined each day, resetting at midnight Eastern Standard Time along with Fetchur. In Europe at least, it resets at midnight UTC, so not along with Fetchur.
 * Peak of the Mountain Level 4 grants +1 Mithril Powder on every Mithril Ore you mine.
 * Mining Pumpkin gives 1 hour of +5% Mithril Powder Gain.
 * Mithril Golem Pet's second perk grants a chance to earn extra powder when equipped.
 * When Spicy Goblin Omelette is equipped on a drill, mining Titanium Ore grants 20 Mithril Powder.
 * Chests in the Crystal Hollows.
 * Mines of Divan Treasure Chests.

Goblin Killer perk unlocked HOTM 5 gives you extra powder when killing golden goblins and normal goblins. the Mithril Golem perk seems to not work on the amount of powder given by the perk

Heart of the Mountain
Mithril Powder is used to upgrade all HotM perks from Tier 1 to Tier 5. Perks in Tiers 5 & 6 are upgraded with Gemstone Powder.

Trivia

 * When earning Mithril Powder by mining Mithril, there is no advantage to mining harder blocks of the same tier since all blocks within the same tier give the same amount of powder on average.
 * Mining Mithril does not actually guarantee getting Mithril Powder, but there is a chance it happens.
 * Mining Mithril in Crystal Hollows gives less Powder then in the Dwarven Mines.

History
미스릴 가루