上海国土资源Issue(3)：87-89,3.DOI:10.3969/j.issn.2095-1329.2015.03.020
四川石棉矿区软玉的岩石矿物学及扫描电镜研究
A petromineralogical and SEM microstructural analysis of nephrite in Sichuan Province
摘要
Abstract
In this study, nephrite with chatoyancy from Sichuan province was studied by electron microprobe analysis (EPMA), X-ray powder diffraction analysis (XRD), Raman spectroscopy, and scanning electron microscopy (SEM). Results indicate that the nephrite cat’s eye is composed mainly of ifber-shaped tremolite with Mg/(Mg+Fe)≥0.88–0.91, and unit cel parameters as folows: a0=0.984–0.985 nm, b0=1.780–1.782 nm, с0=0.527–0.528 nm, and β=106.13°–106.35°. The Raman spectra provide further proof of the mineral’s composition. The effect of the Sichuan nephrite cat’s eye is generated by microscopic ifbrous tremolite crystals. The ifber-shaped tremolite crystals are tightly arranged, which is the primary reason for the tenacity and fracture resistance of the nephrite cat’s eye.关键词
岩石矿物学/透闪石晶体/软玉/猫眼效应/显微结构Key words
petromineralogy/tremolite crystal/nephrite/chatoyancy/microstructure分类
天文与地球科学引用本文复制引用
许耀先,卢保奇,亓利剑..四川石棉矿区软玉的岩石矿物学及扫描电镜研究[J].上海国土资源,2015,(3):87-89,3.基金项目
国家自然科学基金项目(49772096) （49772096）
上海市教育委员会发展基金项目(03AK23) （03AK23）
