| 危地马拉灰绿色翡翠 |
| |
| 引用本文： | 王铎,;龙楚,;谭钊勤.危地马拉灰绿色翡翠[J].地质科学译丛,2009(2):20-23. |
| |
| 作者姓名： | 王铎 ;龙楚 ;谭钊勤 |
| |
| 作者单位： | [1]广东省珠宝玉石及贵金属检测中心,广东广州510080; [2]广州海关,广东广州510623; [3]中国地质大学材料科学与化学工程学院,湖北武汉430074 |
| |
| 摘 要： | 通过对危地马拉灰绿色翡翠样品进行常规宝石学测试、岩矿鉴定、X射线荧光光谱、X射线粉末衍射及红外光谱等分析，确定了其化学成分与硬玉的基本相同，其矿物组成以硬玉为主，含有少量的钠长石、白云母、钠云母及微量的黝帘石、金云母、榍石与方沸石等；主要为柱状、粒状变晶结构与粗粒变晶结构；红外光谱在1000-1100cm^-1范围内由于Ca，Mg等杂质元素替代Al引起vas（Si-O-Si）反对称伸缩振动致1071cm^-1处峰，与缅甸翡翠的相比有明显漂移。
|
| 关 键 词： | 危地马拉翡翠 矿物学 宝石学 |
Celadon Jadeite Jade from Guatemala |
| |
| Institution: | WANG Duo , LONG Chu , TAN Zhao-qin(1. Guangdong Provincial Gem ＆ Precious Metal Testing Centre, Guangzhou 510080, China; 2.Guangzhou CIQ, Guangzhou 510623, China; 3. Faculty of Material Science and Chemical Engineering, China University of Geosciences , Wuhan 430074, China) |
| |
| Abstract: | A celadon jadeite jade sample from Guatemala is studied by using the conventional gemmological methods, rock-mine identify, XRF, XRD and IR. The results show that the chemical compositions of the sample are similar to that of jadeite. The main mineral component is jadeite, including a few albite,muscovite,paragonite and a small amount of zoisite, phlogopite, sphene and analcime. The structure of the sample is mainly column-like crystalloblastic, granoblastic and coarse granoblastic textures. At the range of 1 000-1 100 cm^-1 , the result of Al replaced by Ca and Mg with other impurity elements leads to the infrared spectrum at 1 071 cm^-1 caused by the antisymmetric stretch vibration of vas（Si-O-Si）, which has the obvious drift when compared with that of the jadeite jade from Myanmar. |
| |
| Keywords: | jadeite jade from Guatemala mineralogy gemmology |
| 本文献已被 维普 等数据库收录！ |
|
