Biblioteca - Ingemmet

Vista normal Vista MARC Vista ISBD

Groat, Lee A.

Gem formation, production, and exploration: why gem deposits are rare and what is being done to find them - Quebec INRS-ETE June 2009 - pp. 153-158 ilus.

Subjects--Topical Terms:
EXPLORACION MINERA
GEMAS
GEMOLOGIA
GEOQUÍMICA
PIEDRAS PRECIOSAS