Magalhães MVD de, Depianti JB. Bibliographic review of the causes of color in amethyst crystals. Revista Brasileira de Iniciação Científica [Internet]. 2024 Aug. 2 [cited 2024 Oct. 28];:e024029. Available from: https://periodicoscientificos.itp.ifsp.edu.br/index.php/rbic/article/view/1183