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紫石英为妇科常用药,用于肾阳亏虚,宫冷不孕,惊悸不安,失眠多梦,虚寒咳喘等症,自《中国药典》(1985年版)起将紫石英的来源规定为氟化物类矿物萤石族萤石,主含氟化钙(Ca F2),紫色或绿色,深浅不等。市场上紫石英质量差异较大,其颜色多样,除药典规定的紫色和绿色外,白色与黄色亦为紫石英的常见颜色。通过对氟化物类矿物萤石族萤石的相关研究文献进行查阅、分析,总结了萤石的颜色及其呈色机制。天然萤石是自然界中颜色品种最多的矿物,萤石的颜色主要是混入杂质元素造成。目前关于萤石的紫色的呈色机制主要认识有:稀土离子(4fN离子),色心,包裹体,晶畴或亚显微包体呈色。萤石的绿色为Sm2+和补偿电价离子Na+所产生的色心而引起的570 nm吸收峰及305 nm吸收造成;萤石的黄色为过渡元素的加入,造成晶体离子间的电荷转移形成O2-O32-离子-分子色核造成;萤石的黑色,主要是由于存在有演化程度较高的有机质所引起。提出了《中国药典》紫石英的性状修改建议。
Amethyst gynecological commonly used drugs for kidney yang deficiency, uterine cold infertility, horrified disturbances, insomnia and dreams, asthma cough embolism, since the “Chinese Pharmacopoeia” (1985 edition) will be the source of the provisions of the purple quartz Fluoride minerals Fluorite fluorite, the main calcium fluoride (Ca F2), purple or green, ranging in shades. Amethyst quality differences on the market larger, its diverse colors, in addition to pharmacopoeia purple and green, white and yellow are also common colors of purple quartz. Through the fluorite mineral fluorite fluorite related research literature review, analysis, summed up the color of fluorite and its color mechanism. Natural fluorite is the largest variety of minerals in nature, the color of fluorite is mainly caused by the incorporation of impurities. Currently on the fluorite purple color mechanism mainly recognized are: rare earth ions (4fN ion), color centers, inclusions, crystal domains or sub-microscopic inclusions. The green of fluorite is caused by the absorption peak of 570 nm due to the color center generated by Sm2 + and the compensation price ion Na +, and the absorption by 305 nm. The yellow of fluorite is added by the transition element, resulting in the charge transfer between crystal ions to form O2-O32 - Ion - caused by the molecular color nuclei; black fluorite, mainly due to the presence of a higher degree of evolution of organic matter caused. Proposed “Chinese Pharmacopoeia” purple quartz modification recommendations.