桂林新型水热法合成祖母绿的宝石学特征

陈振强; 张本宏; 蔡丽

桂林新型水热法合成祖母绿的宝石学特征

1. 中国有色总公司桂林矿产地质研究院, 广西桂林, 541004;
3. 广东省黄金公司, 广东广州, 510080;
5. 杭州市质量计量监测中心, 浙江杭州, 310004

基金项目:

国家科技部专题研究项目《刚玉类晶体的水热生长与技术》资助(96-920-15-02)

详细信息

作者简介:
陈振强,男,1965年生,副研究员,主要从事晶体生长及性能研究。

中图分类号: P619.28
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- 收稿日期: 2000-10-09

GEMMOLOGICAL PROPERTIES OF A NEW TYPE OF GUILIN HYDROTHERMAL SYNTHETIC EMERALD

1. Research Institute of Geology for Mineral Resources, CNNC, Guilin, 541004, China;
2. Gold Comp any of Guangdong Province, Guangzhou, 510080, China;
3. Hangzhou Center of Quality Metrology and Inspecting-Test Technology, Hangzhou, 310004, China

摘要

摘要: 桂林新型水热法祖母绿为厚板状或短柱状晶体, 翠绿色或带蓝色调的绿色, c(0001)、 m(1010)、 a(1120)晶面发育;主成分 SiO₂ 及 Al₂O₃含量略高于天然祖母绿, Cr₂ O₃含量在 0.3%~ 0.5%之间;吸收谱显示铬离子吸收, 红外谱显示水的存在, 且在 5000~ 5500 cm^-1范围内有5109,5274, 5448cm^-13个特征吸收峰, 在 3400~ 4000 cm^-1范围有 370 1 cm^-1单峰;有特征的渣状包裹体、硅铍石晶质包裹体、气液两相包裹体和规则的生长纹。其它特征与 Linde、Biron、Tairus合成祖母绿的基本一致。
- 新型合成祖母绿 /
- 水热法 /
- 宝石学特征 /
- 桂林
Abstract: The new type of Guilin hydrothermal synthetic emerald is thick plate or short prismatic crystal with bluish green or green colour. Its crystal configuration consists of two hexagonal prism a (1120) and m (1010) and the basal pinacoid c (0001). EPM analyses show that SiO₂ and Al₂O₃ are more than those of natural emeralds and Cr₂O₃ is similar to that of natural and other synthetic counterparts. Visible absorption spectra show Cr 3+ absorption peak. IR spectra show typical water absorption and characteristic absorption peaks of 5109, 5274 and 5448cm ^-1 in the range of 5000~5500cm ^-1 as well as only one peak of 3701cm ^-1 in the range of 3400~4000cm ^-1. Typical dreg inclusions, bertrandite crystalized inclusions, two-phase inclusions and regular growth line are discovered in the crystal. Other properties of the new type of Guilin hydrothermal synthetic emerald are similar to those of Linde, Biron and Tairus hydrothermal emeralds.
- A new type of synthetic emerald /
- hydrothermal synthesis /
- gemmological property /
- Guilin

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参考文献(11)

[1]	Hosoka M. Hydrothermal growth of gemstones and theircharacterization. Progress of Crystal Growth andCharacterization,1990, 2 1(1): 71-96
[2]	曾骥良, 陈昌益, 宋臣声. 祖母绿合成工艺的试验研究. 珠宝科技, 1990, 2 (2): 17-2 0
[3]	Zeng JL,Ouyang C M. How to identify hydrothem al syntheticemerald from China. Jewellery News Asia,1995, (130): 92-94
[4]	Schmetzer K,Kiefer L,Bernhardt H Jetc.Characterization ofChinese hydrothermal synthetic emerald. Gems andGem ology,1997,33(4): 2 76-2 91
[5]	Schm etzer K. Characterization of Russian hydrothermallygrown synthetic em eralds.The Journal of Gem mology. 1988,2 1(3): 14 5-16 4
[6]	Schm etzer K. Growth method and growth related properties ofa new type of Russian hydrothermal synthetic em erald.Gemsand Gemology,1996, 32 (1): 40-43
[7]	Kane R E,L iddicoat R T. The Biron hydrothermal syntheticemerald.Gems and Gemology,1985, 2 1(3): 14 5-16 4
[8]	邓燕华. 宝玉石矿床. 北京: 北京工业大学出版社, 1992
[9]	Koivula J I,Kammerling R C,Deghionno D,etc.Gem mological investigation of a new type of Russianhydrothermal synthetic emerald.Gems and Gemology,1996, 32 (1): 32-39
[10]	李景芝, 郭立鹤. 如何区分天然与合成祖母绿. 中国宝石, 1995, (3): 5 1-5 4
[11]	陈振强, 蔡克勤, 曾骥良等. 祖母绿水热法生长工艺对比及进展. 矿物岩石地球化学通报, 1999,18(4): 389-394

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桂林新型水热法合成祖母绿的宝石学特征

作者简介: 陈振强,男,1965年生,副研究员,主要从事晶体生长及性能研究。

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出版历程

GEMMOLOGICAL PROPERTIES OF A NEW TYPE OF GUILIN HYDROTHERMAL SYNTHETIC EMERALD

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出版历程

目录

作者简介:
陈振强,男,1965年生,副研究员,主要从事晶体生长及性能研究。