How to build a Nether portal in Minecraft (and link two portals)
Mine it with a Diamond Pickaxe or a Netherite Pickaxe.

The Netherite Pickaxe is a pickaxe, the mining tool for stone, ores and metal blocks. Its material decides which ores drop something when broken. Upgraded from a diamond pickaxe with a netherite ingot, it mines everything a little faster, lasts 2031 uses and survives fire and lava. It works like every other pickaxe; the Iron Pickaxe page explains mining tiers and enchantments.
It is made with the Smithing Table from Netherite Upgrade, Diamond Pickaxe and Netherite Ingot.
Netherite Upgrade + Diamond Pickaxe + Netherite Ingot → Netherite Pickaxe
// Slots with several items cycle through every accepted option.
Mine it with a Diamond Pickaxe or a Netherite Pickaxe.
1 Book, 2 Diamonds and 4 Obsidian (Obsidian needs a diamond or netherite pickaxe).
Diamond Ore only drops a Diamond when you break it with an Iron Pickaxe, a Diamond Pickaxe or a Netherite Pickaxe.
Ancient Debris only drops when you mine it with a Diamond Pickaxe or a Netherite Pickaxe; any other pickaxe breaks it for nothing.
At the Smithing Table: 1 × Netherite Upgrade, 1 × Diamond Pickaxe and 1 × Netherite Ingot give 1 × Netherite Pickaxe.
It mines stone, ores and metal blocks, and its material decides which ores it can collect.
2,031 durability points: each use removes one, and it breaks when none are left. Mending and Unbreaking can extend it.
No: only one per inventory slot.
No: as a dropped item it resists fire and lava.
6 enchantments: Efficiency, Fortune, Mending, Silk Touch, Unbreaking and Curse of Vanishing.