The tiny grains are embedded inside pebbles found outside the rim of Jezero Crater.
The helicopters will scout the Martian surface to help prepare for a human landing on the Red Planet.
Scientists used cameras aboard NASA's Perseverance rover to capture unprecedented views of the Red Planet's green glowing sky.
Mmmm, dusty.
The space agency will provide a broadcast update on the marquee mission that is intended to recover samples of Martian rock for study on Earth.
The rover trekked nearly 2,000 feet to get out of the crater, where it will explore a 4-billion-year-old environment.
The two robots, working alone and far apart from one another, are struggling on their respective treks along the Red Planet's rough terrain.
The rocks indicate an ancient, iron-rich environment, but the rover wasn't able study details of the rock's composition.
