Hellenica World

Hsianghualite

Hsianghualite is a tectosilicate (framework silicate) of lithium, calcium and beryllium, with fluorine, a member of the zeolite group. It was discovered in 1958 and named for the type locality, Hsiang Hua, 香花, meaning fragrant flower.

Structure

Structure is analagous to that of analcime with Be and Si in tetrahedral co-ordination forming a three-dimensional framework.[2] Its space group is I213[2] (Previously reported as I4132[1]). Unit cell parameters are a = 12.879 or 12.897,[1][4] and Z = 8.

Environment

It occurs within phlogopite veins in the light-coloured band of green and white banded metamorphosed Devonian limestone which has been intruded by beryllium-bearing granite.[5] Associated mineral include fluorite, liberite, chrysoberyl, taaffeite and nigerite.[2]

Localities

Hsianghualite has been found only at the type locality, the Xianghualing Mine in Linwu County, Hunan Province, China.

References

1. ^ a b c d e American Mineralogist (1959) 44:1327 English language abstract of Huang Yung-hwei, Tu Shaohua, Wang K'ung-hai, Chao Chun-Lin, and Yu Cheng-Chih (1958)Ti-chih-yueh-k'an 7: 35 (in Chinese)
2. ^ a b c d Gaines et al (1997) Dana's New Mineralogy Eighth Edition
3. ^ http://rruff.geo.arizona.edu/doclib/hom/hsianghualite.pdf
4. ^ a b American Mineralogist (1961) 46:244. Data from A A Beus (1960) Akademii Nauk SSSR 1-329 (in Russian).
5. ^ Roberts, Campbell and Rapp (1990) Encyclopedia of Minerals, 2nd edition


External links

* Mindat
* Webmineral data



List of minerals

Minerals Images

Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License

Index

Scientificlib.com