1. A bright yellow radioactive mineral containing uranium and vanadium, used as an ore of uranium.
Usage: geology; mineralogy

Examples

• Carnotite deposits were discovered in the Colorado Plateau in the early 1900s.
• The yellow color of carnotite makes it relatively easy to identify in rock formations.
• Carnotite became an important source of uranium during the nuclear age.
• Miners extracted carnotite ore to produce both uranium and vanadium.
• The mineral carnotite is typically found in sandstone and other sedimentary rocks.