Trolleite is an extremely rare aluminum phosphate mineral that crystallizes in the form of masses and small prismatic crystals. It is commonly found as an inclusion in Quartz alongside similar minerals such as Scorzalite and Lazulite. One of the largest and most important veins of Trolleite in the mineral community comes from the Minas Gerais region in Brazil. From this locality, large deep blue inclusions of Trolleite can be found in huge Quartz masses.
