Gemstones Identification Chart by Nicolas Lazzarelli

Gemstones Identification-Blue Chart

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5355

Gemstones Identification Chart by Nicolas Lazzarelli Ed. 2017

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12 Tabelle complete di indici, spettri e caratteri distintivi delle pietre più comuni

Gem Identification Bluechart 2017

A compilation of key information for the gemologist:

- to analyze the results obtained with all the standard gemological tools

- to distinguish between natural and treated gemstones, synthesis and imitations

- to avoid traps and potentially misleading results

 

5355

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