Author: EYLES, WILFRED CHARLES.
Title: The Book of Opals.
Description: Third Printing, Large 8vo; pp. 224; colour frontispiece, numerous b/w and colour plates, maps, glossary, index, original cloth, dustjacket, some wear to edges of dustjacket, price clipped, otherwise a very good copy, together with some associated newspaper articles. Rutland, Charles E. Tuttle Company, (1968).

Keywords: Opals gems stones scientific analysis geological explanations types mining cutting polishing mounting