Emerald dust is a crafting component in The Witcher 3: Wild Hunt that is needed to craft the following items:
- Faithful Friend
- Lesser Glyph of Axii
- Lesser Morana runestone
- Ofieri gauntlets (regular game only)
- Ofieri scale armor (regular game only)
- Tah'rel
- Viper silver sword
- Viper steel sword
- Legendary Viper silver sword
- Legendary Viper steel sword
- Viper venomous silver sword
- Viper venomous steel sword
- Legendary Viper venomous silver sword
- Legendary Viper venomous steel sword
It can be found as random loot, guaranteed in a small red-glowing chest inside the nekker monster den east of Ursten, random drop from barghests, tangalores, noonwraiths and wraiths, or purchased from the following merchants:
- All armorers and blacksmiths, except the one at Ardaiso Quarry
- Armors and weapons merchants in Nilfgaardian Army Group 'Center' Camp
- Alchemist in the Crematory near Oxenfurt Gate
- Merchant in the boatyard south of Refugees' Camp
- Merchant at Calveit Watchtower
- Merchant at Coast of Wrecks
- Merchant in the shop in Gildorf
- Merchant in Putrid Grove
- Merchant in the market northwest of Tretogor Gate
- Merchant in Ursten
- Merchant by the road west of White Eagle Fort
- Merchant at the sawmill northeast of Rannvaig
- Merchant at the Isolated Hut on Hindarsfjall
- Merchant in Mohrin Village
- Merchant in Stacheier
- Ofieri merchant at Upper Mill
Emerald dust can also be obtained by dismantling:
- Addan Deith
- Blave
- Caroline
- Dahlia (relic)
- Deargdeith
- Emerald
- Fate
- Fen'aeth (relic)
- Gynvael
- Oathbreaker armor
- Ofieri scale armor
- Ofieri gauntlets
- Reach of the Damned
- Rose of Shaerrawed
- Tor Lara
- Viroledan blade
- Vitis
- Zerrikanterment
- Viper silver sword
- Viper steel sword
- Legendary Viper silver sword
- Legendary Viper steel sword
- Viper venomous silver sword
- Legendary Viper venomous silver sword