TY  - BOOK
AU  - Leechman,Frank
TI  - The Opal book
U1  - 549.68 LEE  
PY  - 1964///.
CY  - Sydney : 
PB  - Ure Smith, 
KW  - Opal mining
KW  - Opal-Crystals
N1  - Includes index
ER  -