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Browsing Indian Institute of Astrophysics by Subject "Amethyst Quartz"

Browsing Indian Institute of Astrophysics by Subject "Amethyst Quartz"

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  • Bappu, M. K. V (Indian Association for the Cultivation of Science, 1953)
    In this paper a study is made of the absorption of light in the ultravia!rt end infrared regions in amethyst quartz. In the ultraviolet the presence of the V-band is masked by the presence of iron impurity and it is ...
  • Bappu, M. K. V (Indian Association for the Cultivation of Science, 1952)
    In this paper a detailed study is made of the absorption of light in the visible region by amethyst quartz. It is found that in the visible region, an absorption band, the so called F-band appears, which decreases in ...

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