1. Plural of aragonite; a mineral form of calcium carbonate (CaCO₃) that is orthorhombic in crystal structure, commonly found in shells, pearls, and coral.
Usage: technical; mineralogy

Examples

• Aragonites are one of the two main crystalline forms of calcium carbonate found in nature.
• The shells of many mollusks are composed primarily of aragonites.
• Pearls develop when aragonites are secreted in layers by oysters.
• Geologists study aragonites to understand the formation of marine sediments.
• Coral skeletons are built from aragonites deposited by the coral polyps.