1. A mineral consisting of a calcium iron magnesium carbonate, typically found in metamorphic and sedimentary rocks.
Usage: geology; mineralogy

Examples

• Ankerite is commonly found in iron ore deposits and metamorphic rocks.
• The geologist identified ankerite in the rock sample using X-ray diffraction.
• Ankerite often occurs alongside siderite in carbonate mineral assemblages.
• Mining operations sometimes encounter ankerite as a gangue mineral in iron ores.