👉 Wollastonite is a mineral with the chemical formula Ca3(Al2(SiO4)6(H2O))2. This mineral is commonly used in jewelry, such as earrings and necklaces, for its unique optical properties. It is a transparent, white, and lustrous gemstone that can be found in many parts of the world, including Australia, New Zealand, and the United States. Wollastonite has a high refractive index (n=1.
