摘要
青海软玉矿床产于中酸性侵入岩与大理岩接触带中。其主要矿物为透闪石。利用X射线粉晶衍射、电子探针等测试手段 ,对软玉的矿物成分、化学成分进行了研究分析。通过对青海软玉显微结构的观察与研究 ,按其主要矿物透闪石组分的表现形式 ,较为系统地划分青海软玉的主要结构类型为 :毛毡状结构、显微纤维 隐晶质结构、显微纤维结构、显微叶片状 隐晶质结构。
Nephrite deposits in Qinghai Province have occurred in contact belt between intermediate-acidic intrusive rocks and dolomite-marble. The main mineral of Qinghai nephrite is tremolite. Using the X-ray powder diffraction, the electronic probe, etc, the mineral compositions and chemical compositions of the nephrite are analyzed. The texture can be systematically classified as the six types: the felt-like texture, the micro-fibrous cryptocrystalline texture, the micro-fibrous texture, the micro-leaf-like cryptocrystalline texture, the micro-leaf-like texture and the radiated fibrous texture.
出处
《宝石和宝石学杂志》
CAS
2004年第4期7-9,共3页
Journal of Gems & Gemmology
关键词
软玉
化学成分
结构
青海省
nephrite
chemical composition
texture
Qinghai Province
