From Exsolution to 'Gold Sheen': A New Variety of Corundum.Published in:Journal of Gemmology, 2015, v. 34, n. 8, p. 678, doi. 10.15506/JoG.2015.34.8.678By:De Corte, Katrien;Bui, Thanh Nhan;Deliousi, Katerina;Malik, Tanzim KhanPublication type:Article