Don’t be fooled. Even with your untrained eye for precious metals, you can use visual cues and a few simple tests to determine whether your metallic yellow find is pyrite vs. gold. Dubbed “fool’s gold ...

Pyrite is a very common iron-sulfide, forming crystals with a nice yellow color and a strong metallic luster. Its shininess is so pronounced that in some ancient Mesoamerican cultures, large crystals ...