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![](./images/clear.gif) 1.- A BRIEF HISTORY OF Y THE SAPPHIRE INDUSTRY IN QUEENSLAND
INSTITUTO GEOLOGICO Y MINERO DE ESPAÑA; MADRID; ESP, 2011
HISTORY OF RESEARCH IN MINERAL RESOURCES
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![](./images/clear.gif) 2.- WHY STUDY THE HISTORY OF GEOLOGY? AND WHY ARE ARCHIVES IMPORTANT?
2002
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