List of All Crafting Materials in Diablo 4

Crafting Materials are a crucial part of Diablo 4. Overall the game features 23 of them. Since they are being stored in a hidden inventory (which can be accessed by clicking the Materials button in your inventory), they don’t take any room in your item inventory and there are no stacking restrictions either. Unlike items, most of the materials, such as gems, ores and herbs are picked up automatically.

Crafting is a cornerstone activity of the middle to endgame. You will be able to craft incense and elixirs, upgrade potions, upgrade your gear (up to 5 times each item), enchant your item, add socket to items, craft Nightmare Sigils. The main ways to obtain crafting materials are:
Drops from monsters
Salvaging Items
Side Quest Rewards
Interactable nodes in the Overworld

Which NPCs take part in crafting?

There are four NPCs in the game at whom you can use crafting materials, these are:

• The Alchemist can create Potions and Elixirs
• The Blacksmith can salvage and upgrade items
• The Jeweler can insert sockets and Gems
• The Occultist can enchant items and craft legendaries

Herbs

The majority of plant materials are found in the Overworld's interactable objects, however some (such as Fiend Rose) can also be found in enemy drops. Plants are used for potion upgrades, elixirs and incense. Here is a list of all Plant Materials:

Ores

Ores can be found in the Overworld, but the best way to acquire them is by salvaging items. Their main use is upgrading Armor and Jewelry pieces. 

Skins

Skins mainly drop from enemy monsters, or as quest rewards. They are required for armor upgrades.

Monster Parts

Higher level monsters tend to drop Monster Parts more frequently. 

Others

Most of these craft materials can be found by salvaging gear, other (such as Forgotten Souls) can be found in Helltides only. They are used for Nightmare Sigil, and endgame gear crafting. 

Name                    Location