TY  - BOOK
AU  - Winchell,Horace
TI  - Optical properties of minerals,: a determinative table
AV  - QE369 .W31
U1  - 549.12 
PY  - 1965///
CY  - New York
PB  - Academic Press
KW  -  
KW  - Optical mineralogy
N1  - Bibliography: p. 14-15
ER  -