1. A soft, white, fine-grained clay mineral composed of hydrated aluminum silicate, commonly used in ceramics, paper coating, and other industrial applications.
Usage: technical; geology/materials science

Examples

• Kaolinite is the primary mineral found in kaolin clay deposits.
• The pottery was made from a mixture containing kaolinite and feldspar.
• Kaolinite's fine particle size makes it ideal for coating paper.
• Geologists identified kaolinite as a weathering product of feldspar.
• The ceramic industry relies heavily on kaolinite for producing high-quality porcelain.