GREW, Edward S. Note on Sapphirine and Sillimanite + Orthopyroxene from Panrimalai, Madurai District, Tamil Nadu. Journal of Geological Society of India, [S. l.], v. 25, n. 2, p. 116–119, 1984. Disponível em: https://geosocindia.com/index.php/jgsi/article/view/65392. Acesso em: 20 sep. 2024.