1. A white, gray, or colorless mineral form of lead carbonate, PbCO₃, used as an ore of lead.
Usage: mineralogy; geology

Examples

• Cerusite is one of the most important ores of lead.
• The museum's mineral collection includes a fine specimen of cerusite from Morocco.
• Cerusite crystals often form in the oxidized zones of lead deposits.
• Geologists identified cerusite in the weathered ore samples.
• The pale cerusite specimen displayed a brilliant luster under the museum lights.