Elements of optical mineralogy an introduction to microscopic petrography - Winchell, Alexander Newton 1874-1958.; Winchell, N. H. 1839-1914 (Newton Horace). (New York London J. Wiley & Sons, Inc. Chapman & Hall, limited, 1931)
pt II. Descriptions of Minerals.
First and second editions by Newton H. Winchell and Alexander N. Winchell.
Four folded diagrams in pocket.
Keywords: Optical mineralogy