What’s in a Firework? The Minerals Behind the 4th of July Magic

I love the Fourth of July. Whether you're catching the city’s fireworks at the new location, or hosting your own backyard BBQ with sparklers for the kids, there’s one thing that never fails to impress: the colors that light up the night sky.

But have you ever looked up during a fireworks show and wondered, how does the sky explode in red, white, blue... and green?

As it turns out, the answer is all about minerals.

The Science Behind Fireworks Colors

Besides being a fun fact to impress your friends during the finale, knowing what makes fireworks work is a reminder of just how intertwined our daily lives are with Earth’s natural resources. Some of these minerals are considered critical commodities, meaning they’re vital to modern life and can be difficult to source.

So the next time you see a shimmering white sparkle or a deep red bloom over the Mohawk River, you’ll know: there's real science, and some pretty rare elements behind all that beauty.

How Do Fireworks Get Their Colors?

So the next time you see a shimmering white sparkle or a deep red bloom over the Mohawk River, you’ll know: there's real science, and some pretty rare elements behind all that beauty.

It all comes down to chemistry. When fireworks are launched, metallic compounds, also called mineral elements, are heated to really hot temperatures. And as they burn, they emit specific colors of light.

The more complex the mix, the more dazzling the display.

Gallery Credit: Unsplash/TSM

Source: What Makes Fireworks Colorful? The Science Behind the Boom