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Space symmetry of prehnite，Ca2AI[6](Si3AIO10)(OH)2, from the Tieshan iron mineral deposit, Central China

Published online by Cambridge University Press:  05 July 2018

W.-y. Zhao ,
X.-w. Liu ,
Q.-y. Wang  and
Q.-j. Zhang
W.-y. Zhao*
Affiliation:
State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
X.-w. Liu
Affiliation:
Center of Testing and Analysis, China University of Geosciences, Wuhan 430074, China
Q.-y. Wang
Affiliation:
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
Q.-j. Zhang
Affiliation:
State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
*
* E-mail:wyzhao@mail.whut.edu.cn
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Abstract

The space symmetry of prehnite, a mineral which occurs in cavities and veins within skarn from the Tieshan iron mineral deposit, Daye, Hubei province, central China, has been determined using selected area electron diffraction (SAED) and convergent-beam electron diffraction (CBED) on the submicrometer scale. Our results confirm that natural prehnite may belong to space group Pncm. The unit-cell parameters of the prehnite investigated ( a = 0.458 nm, b = 0.555 nm and c = 1.853 nm) have been calculated using the multicrystal diffraction rings of gold, the internal standard.

Keywords

prehniteselected area electron diffractionconvergent-beam electron diffraction.

Information

Type
Research Article
Information
Mineralogical Magazine , Volume 67 , Issue 1 , February 2003 , pp. 73 - 77
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2003

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References

Akizuki, M. (1987) Al,Si order and the internal texture of prehnite. The Canadian Mineralogist, 25, 707—716Google Scholar
Aumento, F. (1968) The space group of prehnite. The Canadian Mineralogist, 9, 485—492Google Scholar
Baur, W.H., W., Joswig, D., Kassner and Hofmeister, W. (1990) Prehnite: structural similarity of the mono-clinic and orthormbic polymorphs and their Si/Al ordering. Journal of Solid State Chemistry, 86, 330—333CrossRefGoogle Scholar
Fan, H.J. and Li, F.H. (1984) Some problems of collecting three-dimensional diffraction information on crystals by transmission electron microscopy. Acta Mineralogica Sinica, 4, 377—380(in Chinese).Google Scholar
Guo, K.X., Ye, H.J. and Wang, R.H. (1987) The Application of Electron Diffraction Pattern in Crystallography, 241 pp. Science Press, Beijing, China (in Chinese).Google Scholar
Lowenstein, W. (1954) The distribution of aluminum in the tetrahedra of silicates and aluminates. American Mineralogist, 39, 92—96Google Scholar
Papike, J.J. and Zoltai, T. (1967) Ordering of tetrahedral aluminum in prehnite, Ca2(AlFe+3)[Si3Al〇10](OH)2. American Mineralogist, 52, 974—984Google Scholar
Sze-Tzung, Peng, Kung-Du, Chou and You-Chi, Tang (1959) The structure of prehnite. Acta Chemistry Sinica, 25, 56—63(in Chinese).Google Scholar
Preisinger, A. (1965) Prehnit-ein neuer Schichtsilikattyp. Tschermaks Mineralogische und Petrographische Mitteilungen, 10, 491—504(not seen; extracted from American Mineralogist, 52, 984, 1967).CrossRefGoogle Scholar
Tanaka, M., Sekh, H. and Nagasawa, T. (1983) Space- group determination by dynamic extinction in convergent-beam electron diffraction. Acta Crystallographica, A39, 825—837CrossRefGoogle Scholar
Wu, X.L, Meng, D.W., Pan, Z.L., Yang, G.M. and Li, D.X. (1998) Transmission electron microscopic study on new, regular, mixed-layer structure in calcium-rare-earth fluorocarbonate minerals. Mineralogical Magazine, 62, 55—64Google Scholar
Zhao, W.Y., Wang, Q.Y., Sun, Z.Y., Ye, X.X., Chen, J.Z., Liu, X.W. and Zhao, W.X. (1999) Microstructure studies on prehnite by transmission electron microscopy. Journal of Chinese Electron Microscopy Society , 18, 548—553Google Scholar