Mineral Composition Characters and Prospect of Longido Red Corundum Deposit in Tanzania

详细信息   

• 责任者：Yang Xiaowen (Qinghai Test Application Center of Geology and Mineral ; Xining 810008 ; China) ; Zhang Liangju
• 刊名：Journal of Guilin University of Technology
• 出版年：2012
• 卷期：32(2)
• 关键词：红宝石 ; ruby ; 坦桑尼亚 ; Tanzania
• 页码：p.173-178
• 图表：3 illus., 2 tables, 10 refs.
• 分类号：0700
• issnNo：ISSN1674-9057
• isbnNo：CN45-1375/N

摘要

    

Based on red corundum deposit samples from Tanzania, according to the observation of macroeconomic and polarizing microscope, the analysis of XRD, infrared spectrometry and EDS, the main minerals in ruby deposit are red corundum （ 8% ） , zoisite （ 69% ） , omphacite （ 14% ） and pargasite （ 5% ）. Minor minerals are pyrope, chrome ceylonite, plagioclase and calcite （total content about 4% ）. The omphacite, pyrope, zoisite and pargasite have a high content of A1 and Cr. The main reason of green color of zoisite may be the existence of Cr. The rock or mineral of red corundum deposit can be used for decoration, collection, and gallery, with great market potential.