Marble-hosted ruby from Vietnam Pham Van Long Hoang Quang Vinh Garnier, V. /Giuliani, Gaston Ohnenstetter, D. MINERALOGIE GITOLOGIE ROCHE ENCAISSANTE ROCHE METAMORPHIQUE CRISTALLOGRAPHIE ANALYSE CHIMIQUE CORINDON MARBRE 2004 text https://www.documentation.ird.fr/hor/fdi:010034441 fdi:010034441 Pham Van Long, Hoang Quang Vinh, Garnier V., Giuliani Gaston, Ohnenstetter D.. Marble-hosted ruby from Vietnam. 2004, 25 (3), 83-95 EN VIET NAM