BUTT, K.; SHAH, Z. Discovery of Blue Beryl from Ilum Granite and its Implications on the Genesis of Emerald Mineralization in Swat District. Journal of Himalayan Earth Sciences, [S. l.], v. 18, n. 1, p. 75-81, 1985. Disponível em: http://ojs.uop.edu.pk/jhes/article/view/1285. Acesso em: 29 nov. 2024.