GEMS AND PRECIOUS STONES OF MEXICO DISCUSSION OF PAPER BY GF KUNZ - HALSE, EDWARD (AMERICAN INSTITUTE OF MINING ENGINEERS, 1901)
TRANS AM INST MIN ENGI
Keywords: GEMS, PRECIOUS, STONES, MEXICO, DISCUSSION, PAPER, KUNZ; CIENCIAS DE LA TIERRA Y DEL ESPACIO; GEOLOGIA; MINERALOGIA