Glowstone Dust

Glowstone Dust is an item that is found in the Blazing Fortress. If the player walks on the left side past the warp pad through a small patch of Pigmen, they will encounter an abundance of Glowstone. This Glowstone will not leave behind a block when broken, but will regenerate in the exact spot it was broken.

Glowstone Dust Collection
Collecting glowstone dusts increases the player's glowstone collection, which grants useful items and perks upon collecting certain amounts of glowstone dusts.

Brewing
When a potion is brewed with Glowstone Dust, it will amplify a potion's level by 1.