TY  - BOOK
AU  - Groat, Lee A.
TI  - Geology of gem deposits
SN  - 9780921294542
AV  - QE 392 .G46 2014 
PY  - 2014///
CY  - Canada
PB  - Meneralogical association of canada
KW  - Geology
KW  - Gem deposits
KW  - Minerology
ER  -