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Publication — identifier 0018 [Lazzarelli, H. N. 2012]
Lazzarelli, H. N.
2012
Gemstones Identification. Blue Chart
http://www.gembluechart.com/
A compilation of key information to analyse the results obtained with standard gemological tools such as refractometer, microscope and loupe, dichroscope, polariscope, etc.
