TY  - BOOK
AU  - SINKANKAS, JOHN
TI  - GEMSTONE & MINERAL DATA BOOK
T2  - 0
SN  - 0-02-094100-5
U1  - 549 
PY  - 1972///
CY  - NEW YORK-U.S.A.
PB  - COLLIER BOOKS
KW  - CIENCIAS PURAS
N1  - WEIGHTS-MEASURES-CONVENRSIONS/CHEMICALS
ER  -