What makes green shooting stars green?

The colors of this shooting star may also indicate the minerals that make up the space rock. Different elements emit different-colored light when they burn. Iron, one of the most common elements found in meteors, glows yellow. Silicates, which contain a form of the element silicon, glow red. read more

The gases emitted by the " Green Shooting Star " (which is a comet) is what makes it green or blue or any color depending on the gas. read more

A green shooting star doesn't mean anything other than it has high percentage of magnesium compounds. Copper has to be oxidized to turn it green, and that does NOT happen shooting stars (meteoroids). read more