Overseer's Spade

Alter: This golden shovel is miraculously resistant to impacts and scrapes. As an action, you can touch the tip of the shovel to a patch of loose earth within 5 feet of you and speak its command word. When you do, you can magically excavate up to a total of 8 contiguous 5-foot cubes of loose, nonmagical earth, starting from where you touched the shovel. it takes 1 minute for these changes to take effect. Any dirt and stone removed in this way is destroyed, leaving behind any loose metals or gemstones within the excavated area. The shovel can only remove up to 8 cubes of earth in this way each day.

Attunement: Yes
Rarity: Uncommon
Type: Item
Cost: 500gp

Griffons Saddlebag, Vol II

a relic of the times of Zvergburt
enterprising dwarven miners will pay upwards of 10x the cost.
useful in extracting (X) material, which has the tendency to explode being mined regularly (like Beyonders orantium)