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Internal Structure, Colour and Luster of Oyster pearl of Japan (Abstract)
[in Japanese]
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OMORI Keiichi
… following work was undertaken by the writer to ascertain th ecause of the colours of pearl., While several investigators have studied this problems, their studies have largely been based on interference or diffraction of liget on sarface of pearl., As a result of the present investigation, quantitative data on interference of light especially by the inner laminae are presented., Whereas the nacreous matter appears homegeneous to the naked eyes, it consists of numerous layers, which may be detected on a plane polished nearly tangential to the surface, as …
Journal of the Geological Society of Japan 54(631-633), 33-38, 1948-07-20
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