A red evil eye is said to bring you courage, enthusiasm, energy, protection from fears and anxieties. Rosarita is a by-product of gold smelting. Smelting gold is the process of extracting gold from an ore it is combined with. Essentially, when an ore that is gold-bearing gets heated to high temperatures, gold sinks down to the bottom and the non-metals solidify into boulders of red and orange. Red being Rosarita.