TY  - BOOK
AU  - De Silva, R.N.P. ;
TI  - Gemmology : a practical approach
SN  - 9559782908 
U1  - 553.8 
PY  - 2002///
CY  - Ratmalana
PB  - Vishva Lekha Pub.
KW  - Precious stones.
KW  - Gems
N2  - This book is intended for all who have interest in Gems; collectors, traders and students. People make costly mistakes by trying to identify a gemstone by the naked eye; the only guiding factor being the color of the stone. This is an attempt to help those who are interested in identifying a gemstone scientifically and a short review for those who have an interest in the subject of Gemmology
ER  -