摘要
根据不同产地碧玺的成分及红外光谱特征，广西。云南、内蒙等地的碧玺分别属于镁电气石、锂电气石．锂电气石．碧玺的颜色，透明度，双折射率，密度与电气石成分中的微量元素种类和含量有密切关系。翠绿色碧玺的颜色是由Ｃｒ２Ｏ３，Ｖ２Ｏ５致色；粉红色碧玺的颜色是内ＭｎＯ引起的，深蓝色碧玺的颜色与ＴＦｅＯ有关；黑色碧玺的颜色是由ＴＦＣＯ及ＴｉＯ２所致．
According to composition and IR spectra characteristics of the different localitiestourmalines,the tourmalines in Guangxi, Yunnan and Neimeng belong to dravite, elbaite andschorl,respectively. The colour, transparence, double refraction index and density of thetourmalines are related with species and content of the trace elements in the composition oftourmalines. The colour of the jade--green tourmalines is related with the contents of Cr2O3 andV2O5, The colour of the pink tourmalines results from the existence of MnO;The colour of thedeep-blue tourmalines is caused by the existence of TFeO,The colour of the black tourmalinesis related with the contents of TFeO and TiO2.
出处
《桂林工学院学报》
1996年第3期291-297,共7页
Journal of Guilin University of Technology
关键词
碧玺
电气石
宝石
矿物特征
质量评价
tourmalines
gemstone, mineral characteristics
quality evalution
Neimeng
Guangxi
Yunnan
