A Study of Color and Luobowen of Tianhuang Stone
详细信息
- 责任者：Liu Yungui (College of Gemstone and Material Technology ; Shijiazhuang University of Economics ; Shijiazhuang 050031 ; China) ; Chen Tao
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2013
- 卷期：32(4)
- 关键词：寿山石 ; agalmatolite
- 页码：p.549-556
- 图表：4 illus., 5 tables, 27 refs.
- 分类号：0700
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
The Tianhuang stone from Shoushan in China was studied by using slice observation, SEM, EDS, micro-Raman spectra, LA-ICP-MS, total iron analysis and EPR with the purpose of investigating the Luobowen and color genesis of Tianhuang stone. Under close magnification, no obvious regular boundary exists between matrix and Luobowen which diffuses around.SEM, EDS and micro-Raman spectral analysis show that svanbergite is the main mineral composition of the Luobowen. The authors hold that iron oxides and/or iron hydroxides are adsorbed at the surface of layered silicate mineral grains, leading to secondary color.