Crimson Desert: Crude Gold Bar

A crude gold bar is a crafting material and a thing you can sell. Game8's location list is the only full set I read: the treasure room in the Vault of Vengeance, the harpy nest in southern Pailune, a warehouse in the Golden Plains, Delesyia Castle, Horseshoe Lake Island, and a sea cave in the Grey Forest. They come from chests and hidden rooms, not from a vendor recipe on that page.

A separate search asks for the best place to sell. The page does not freeze a buyer or a price, so I will not name a shop. Six sites is the useful part. If a later patch moves a chest, the row should say which site changed instead of quietly dropping one.