The mineral that has a yellow color, metallic luster, hardness of six, and greenish-black streak is pyrite. It is commonly known as fool's gold due to its golden color and resemblance to gold, but it is actually an iron sulfide mineral. Pyrite is found in various geological settings and is widely distributed throughout the world. It is often associated with other sulfide minerals and can be found in igneous, sedimentary, and metamorphic rocks.