Augelite is a rare mineral composed of aluminum phosphate with the chemical formula Al₂PO₄(OH)₃. It belongs to the phosphate mineral group and crystallizes in the monoclinic crystal system. The name “Augelite” is derived from the Greek word “auge,” meaning brightness, referring to its often transparent and glassy appearance. This mineral typically occurs in colorless, white, or pale green shades, though it may sometimes exhibit light blue or yellowish tones due to impurities. Augelite crystals are usually transparent to translucent and display a vitreous (glass-like) luster, which enhances their visual appeal. Well-formed crystals are relatively rare and are highly sought after by collectors.