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![](./images/clear.gif) 1.- Ga/Mg ratio as a new geochemical tool to differentiate magmatic from metamorphic blue sapphires
Elsevier; Amsterdam; NLD; Netherlands, 2007
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![](./images/clear.gif) 2.- TOWARD A GEOCHEMISTRY OF OPALS
PERGAMON; OXFORD; III; INTERNATIONAL, 2005
ABSTRACTS OF THE 15TH ANNUAL V. M. GOLDSCHMIDT CONFERENCE
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