| 大别山玉的相关特征及形成机制 |
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| 引用本文： | 袁晓玲,张青,阳珊,张鹏.大别山玉的相关特征及形成机制[J].安徽地质,2012(3):188-191. |
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| 作者姓名： | 袁晓玲 张青 阳珊 张鹏 |
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| 作者单位： | 安徽省地质实验研究所,安徽 合肥 230001 |
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| 摘 要： | 利用光薄片观察,结合X衍射和化学分析,揭示大别山玉的颜色、光泽及“水草”形成机制.结果表明,大别山玉原生颜色为无色,系石英集合体的自生色;绿色、墨绿色系含一定量的绿泥石所致;白色系孔隙引起的假色.籽料大别山玉的红—黄色系氧化或充填致色,为玉石所含铁质矿物氧化和外来铁质浸润引起;光泽的不同主要由石英粒度引起;“水草”由铁锰质沿裂隙贯入形成.
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| 关 键 词： | 大别山玉特征 致色机制 光泽 水草 |
Relevant features and formation mechanism of the Dabieshan jade |
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| YUAN Xiao-ling,ZHANG Qing,YANG Shan,ZHANG Peng.Relevant features and formation mechanism of the Dabieshan jade[J].Geology of Anhui,2012(3):188-191. |
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| Authors: | YUAN Xiao-ling ZHANG Qing YANG Shan ZHANG Peng |
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| Institution: | (Institute of Geoanalysis of Anhui Province,Hefei,Anhui 230001,China) |
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| Abstract: | Through optical observation of thin section,combined with X-ray diffraction and chemical analysis,this paper disclosed the formation mechanism of color,lustre and ＂water weeds＂of the Dabieshan jade,indicating that the colorlessness is the authigenic color of quartz aggregates,the green and dark green colors are resulted from some content of chlorite in the jade,the white color is false color caused by voids.The red-yellow color of the river jade is resulted from oxidization of iron-bearing mineral contained in it or infiltration of outside iron-bearing substance.Different lustres are due to quartz grain sizes and ＂water weeds＂is formed by Fe-and Mn-bearing substance injection through fissures. |
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| Keywords: | features of the Dabieshan jade color-forming mechanism lustre ＂water weeds＂ |
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