Morganite, also known as "Pink Beryl," "Rose Beryl," "Pink Emeral," and "Cesian Beryl," is a rare light pink to rose-colored gem-quality variety of the mineral beryl (Be3Al2(SiO3)6), which is better known for its green variety (emerald) and its blue variety (aquamarine). Morganite was named for financier (and gem and mineral collector) J. P. Morgan. Orange/yellow varieties of morganite can also be found, and color banding is common. The mineral turns pinker upon high-temperature treatment.