Apatite is a naturally occurring phosphate mineral group with the general chemical formula Ca₅(PO₄)₃(F,Cl,OH). It belongs to the phosphate mineral group and crystallizes in the hexagonal crystal system. The name “Apatite” is derived from the Greek word “apate,” meaning “deceit,” because it is often mistaken for other gemstones due to its wide range of colors and appearances. Apatite occurs in a variety of striking colors, including blue, green, yellow, violet, brown, and even colorless forms. Among these, neon blue apatite from Madagascar is particularly popular and highly valued for its vivid color and brilliance. The gemstone can be transparent to translucent and exhibits a vitreous (glass-like) luster, making it visually appealing when cut.