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             Table 3:   to analyse the results got with the dichroscope        Table 4:   to analyse the results got with the spectroscope  
 
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  Anisotropic stones are listed by colors;
  Characteristic pleochroism is described.
       Three pages containing the diagnostic and relevant
       spectrums seen with a handheld spectroscope.
 
 
On the back cover, the index will lead you to the information you are looking for.