| 浙江雷甸淡水无光珠中球文石的首次确认 |
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| 引用本文： | 马红艳,戴塔根,袁奎荣,邓燕华. 浙江雷甸淡水无光珠中球文石的首次确认[J]. 矿物学报, 2001, 21(2): 153-157 |
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| 作者姓名： | 马红艳 戴塔根 袁奎荣 邓燕华 |
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| 作者单位： | 1. 广西大学环境与建筑工程学院,
2. 中南大学环境与建筑工程学院, |
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| 摘 要： | 球文石（Vaterite)是CaCO3很不稳定的同质多象变体，在自然界里很少出现，通过光学显微镜在淡水无光珠中发现球文石尚属首次，本文研究了淡水无光珠内球文石的显微特征、X射线粉晶衍射特征及显微红外光谱特征，研究结果表明淡水无光珍珠内球文石粉晶衍射由强至弱五个强峰的d值为0.3266,0.2723,0.3553,0.1811,0.2057nm；其红外光谱特征波数为1489，1450,1420,1087,1050,876,830,762,743cm^-1。球文石的存在是影响淡水珍珠品质的主要内在因素之一。
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| 关 键 词： | 球文石 淡水珍珠 宝石学 浙江 碳酸钙 同质多象变体 |
| 文章编号： | 1000-4734(2001)02-153-05 |
| 修稿时间： | 2000-12-20 |
THE FIRST DISCOVERY OF VATERITE IN LUSTERLESS FRESH-WATER PEARLS OF LEIDIAN, ZHEJIANG |
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| Ma Hongyan+ Dai Tagen+ Yuan Kuirong+ Deng Yanhua+. THE FIRST DISCOVERY OF VATERITE IN LUSTERLESS FRESH-WATER PEARLS OF LEIDIAN, ZHEJIANG[J]. Acta Mineralogica Sinica, 2001, 21(2): 153-157 |
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| Authors: | Ma Hongyan+ Dai Tagen+ Yuan Kuirong+ Deng Yanhua+ |
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| Affiliation: | Ma Hongyan+1 Dai Tagen+2 Yuan Kuirong+2 Deng Yanhua+2 |
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| Abstract: | Vaterite is a very unstable polymorphism of calcium carbonate, rarely appears in nature. This is the first time to discover vaterite in lusterless fresh|water pearls by optical microscopy. The present paper describes the microscopic characteristics of vaterite in lusterless fresh|water pearl, and presents its X|ray powder diffraction and microscopic infrared spectroscopy data. The content of vaterite is the main factor that affects the quality of fresh|water pearls. The X|ray diffraction (d) data of vaterite mainly are {3.266}, {2.723}, {3.553}, {1.811} and {2.057}. The IR spectroscopic wavenumbers are {1489}, {1450}, {1420}, {1087}, {1050}, 876, 830, 762 and 743 cm+{-1}. |
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| Keywords: | s: vaterite fresh|water pearl gemology Zhejiang |
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