利用偏振喇曼光谱（PRS）和傅里叶变换红外光谱（FTIR）研究了三种不同成因电气石单晶的振动谱学特征。PRs研究表明电气石结构中三个阴离子团（即 [si6010] 12-、[B03]3-、[0H]一）的喇曼光谱在平行c轴方向（//Ne）比垂直c轴方向（//NC）敏锐。而且[0H]-喇曼光谱只在平行e轴的PRS中才观察到。不同成因电气石中 [0H]-占位不同。结合FTIR研究发现在伟晶型和热液型的电气石的隧道中还存在结晶水。这些发现不但在晶体化学、矿床成因方面有意义，而且为此类含水电气石的改性（如颜色、透明度、压电性及热电性等）提供了新思路。

In this paper authors study all sorts of fancy diamond,and then analyze what caused colorchange in fancy diamond. Moreover, authors tu to discusses its mechanism of coloration and character offancy diamond.

由于具有特殊的晶体化学特点，天然磷灰石可以作为一种新型环境功能矿物材料用于对含重金属废水的处理。对Cd2+、pb2+、Fez2+、[uO2]2+、Cu2+、zn2+、cr2+、和Hg2+等离子的吸附实验结果表明，磷灰石对绝大多数重金属离子去除效果很好。在室温和pH为3、作用时间为60rain的实验条件下，pb2+去除率可达99.4%，饱和吸附容量超过1～100mg/g。主要的去除机理包括吸附、表面络合、溶解一沉淀以及重金属离子与晶格中之间的离子交换作用。一般而言，被吸附的重金属离子可固化在晶格中而不出现解吸，因此不会产生二次污染。影响去除效果的因素包括磷矿石的类型、磷灰石的矿物成分、介质pH值、温度、吸附时间、离子的初始浓度、样品的粒度和用量等。通常，羟基磷灰石的效果优于氟磷灰石的，硅质磷块岩的效果优于钙质磷块岩的，结构碳酸根的存在能增加比表面积从而增加反应活性。对于不同离子，最佳pH值条件不同。温度的升高有利于反应的快速进行，但一般地说60～180min即可达到平衡。

The Raman spectra of the natural end members of the garnet-group minerals, which include pyrope, almandine and spessarite of Fe-A1 garnet series and grossularite, andradite and uvarovite of Ca-Fe garnet series, have been studied. Measured Raman spectra of these minerals are reasonably and qualitatively assigned to the internal modes, translational and rotatory modes of SiO4 tetrahedra, as well as the translational motion of bivalent cations in the Xsite. The stretch and rotatory Alg modes for the Fe-Al garnet series show obvious Raman shifts as compared with those for the Ca-Fe garnet series, owing to the cations residing in the X site connected with SiO4 tetrahedra by sharing the two edges. The Raman shifts of all members within either of the series are attributed mainly to the properties of cations in the Xsite for the Fe-Al garnet series and in the Ysite for the Ca-Fe garnet series.