Glowstone is a glowing yellow block that hangs in clusters from the Nether ceiling.
It is made with the Crafting Table from 4 × Glowstone Dust. It gives off light level 15.
Mining it without Silk Touch gives two to four Glowstone Dust, more with Fortune; four dust craft the block back. It gives full light, charges a Respawn Anchor and is part of the redstone lamp. Glass-like, it breaks quickly with any tool.
Crafting table Also in the 2×2 inventory grid 
4 × Glowstone Dust → Glowstone
// Slots with several items cycle through every accepted option.
VillagerSold by · Cleric (Journeyman)
Wandering TraderSold by
Not Quite "Nine" LivesCharge a Respawn Anchor to the maximumMost other ingredients added straight to a water bottle only give a Mundane Potion (or a Thick Potion with glowstone), and both are useless in Java Edition.
A dense 7×7 grid of Torches on the spawner's level works, and so do fewer light sources of level 15 such as Glowstone, Shroomlight or Jack o'Lantern, placed so that…
Redstone LampRespawn Anchor Glowstone Dust At the Crafting Table: 4 × Glowstone Dust give 1 × Glowstone. Mined with Silk Touch, the block drops itself; without it, it drops Glowstone Dust. It can be found as loot in Bastion Remnant. Sold by Villager: Cleric (Journeyman). Sold by Wandering Trader.
It is a bright Nether block for lighting and respawn anchors. It is an ingredient in 2 recipes, made at the Crafting Table; for example Redstone Lamp and Respawn Anchor.
Yes, light level 15.
Placed under a Note Block, Glowstone gives the Pling sound.
Not Quite "Nine" Lives (Charge a Respawn Anchor to the maximum).
