Gem Identification BlueChart | Home | Features | Order | Lab reports & links | Contact | Author |               Table 3:   to analyse the results got with the dichroscope Table 4:   to analyse the results got with the spectroscope      << Back Order  >>    See details >>        Anisotropic stones are listed by colors, in alphabetical order.   Pleochroism is classified as weak, distinct or strong.   Three pages containing all 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.