Brinebrawn Stone

Vendor

Base value 99s (carries a vendor price; bought or sold as a reagent).

Crafting

Not craftable.

Gathering

Obtained from a world gathering node or chest. World gathering requires Character Level 52 on Rookery Isles. See Mining, Logging, Gathering, and Farming.

Dropped by

Abyssal Trap Chest	level 50
Nightmare's Embrace Chest	level 50
Laboratory of Terrors Chest	level 50
Womb of the Crimson Dream Chest	level 50
Sanctuary of Darkness Chest	level 50
Creatures' Vault Chest	level 50
Duskfallen Hall Chest	level 50
Mouth of Chaos Chest	level 50
Dimensional Crevice Chest	level 50

and 1 more.

Note: the monster level tells you the zone tier where it is found; exact spawn coordinates are not published in the game data. See the World Atlas for zone level bands and Dungeons & Raids for instanced drops.