【摘要】 测量了产自我国不同地区的一批萤石的吸收光谱。研究了这些谱的特点,并在此基础上研究了它们经热处理和辐照前后吸收谱的变化。初步探讨了萤石染色的机理。认为萤石中400nm和600nm峰主要与色心吸收有关;590nm峰则为胶体钙和色心的复合吸收峰。更多还原

【Abstract】 The absorption spectra of a group of fluorites from different regions of our country were measured and their properties studied. On this base, we observed the change of these spectra after being irradiated and/or heated. The mechanism of the fluorite coloration is proposed, We consider that the absorption peaks at 400nm and 600nm are related with the colour centers, and that the peak at 590nm is a combination of the colour center and colloidal calcium.更多还原