摘要
通过对青海软玉与其中的水线进行X粉晶衍射(XRD)、显微镜和扫描电镜(SEM)分析结果表明:青海软玉中水线的主要矿物成分与主体是一致的,均为透闪石,且含量更高、结晶度更好。显微镜和扫描电镜下观察水线与主体部分呈突变接触,水线中的透闪石晶体为细长纤维状,具有明显的定向性。较高的透闪石含量和定向紧密排列的显微纤维构造是造成水线透明度较高的主要原因,同时这种结构还使其韧性降低。
The water line in nephrite from Qinghai province has been studied by XRD and SEM. The result indicate that water line and nephrite part mainly consist of tremolites. Crystal degree and tremolite content of water line is higher than main part＇s. Observed under microscope and SEM, water line is in sharp contact with main parts. The tremolites in water line are slenderly fibrous crystals which are obviously directional. Higher tremolite content and close directional micro -fibrous texture are the main reasons for higher transparence of water line. Moreover the texture reduces the tenacity of water line.
关键词
软玉
青海
水线
XRD
SEM
nephrite, Qinghai, water line, XRD, SEM
