The primary type of soil in the Mojave Desert is sand.

In the Mojave Desert, sandy soil dominates the landscape. The arid conditions, marked by low rainfall and high evaporation, result in soil that is often dry and loose, primarily composed of sand. This type of soil is found in areas such as sand dunes, dry lake beds, and desert plains. Sandy soil has low nutrient content, which makes it difficult for plants to grow unless they are specifically adapted to desert conditions, like cacti and creosote bushes. Despite its dryness and poor fertility, this soil type plays a significant role in the desert's ecosystem.