Brazilianite is a rare and attractive mineral belonging to the phosphate mineral group. Its chemical formula is NaAl₃(PO₄)₂(OH)₄, and it crystallizes in the monoclinic crystal system. The mineral was first discovered in Brazil, which is also the origin of its name. Brazilianite is admired for its bright color and transparency, making it a desirable collector’s gemstone. The gemstone typically occurs in shades of yellow, yellow-green, and green. Its color is caused by trace elements and its unique chemical composition. High-quality Brazilianite crystals are transparent and exhibit a vitreous (glass-like) luster, giving them an appealing brilliance when cut and polished. However, due to its relative softness, it is more commonly kept as a collector’s specimen rather than used in everyday jewelry.