Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Zeitschrift für Kristallographie - Crystalline Materials

Editor-in-Chief: Pöttgen, Rainer

Ed. by Antipov, Evgeny / Boldyreva, Elena V. / Friese, Karen / Huppertz, Hubert / Jahn, Sandro / Tiekink, E. R. T.

IMPACT FACTOR 2017: 1.263
5-year IMPACT FACTOR: 2.057

CiteScore 2017: 2.65

See all formats and pricing
More options …
Volume 132, Issue 1-6


Crystal structure of fabianite, CaB3O5(OH), and comparison with the structure of its synthetic dimorph*

Judith A. Konnert / Joan R. Clark / C. L. Christ
Published Online: 2010-07-28 | DOI: https://doi.org/10.1524/zkri.1970.132.1-6.241


The crystal structure of fabianite, CaB3O5(OH), from salt deposits near Diepholz, Germany, has been solved by Patterson and electron-density syntheses using about 1300 reflections. Least-squares refinement reduced the residual to 0.075. Fabianite is monoclinic, P21/a, a = 6.593, b = 10.488, c = 6.365 Å, β = 113.38°, Z = 4, density (calc.) 2.788 g/cm3. The structure contains infinite sheets of composition [B3O5(OH)]n−2n, similar to those previously found in the synthetic orthorhombic dimorph. The sheets are formed by cross-linking colemanite-like chains. In fabianite Ca is coordinated by two hydroxyl ions and six oxygen atoms; the polyhedra share edges to form infinite chains along a that link polyanion sheets together. In synthetic CaB3O5(OH), Ca is coordinated by two hydroxyl ions and only five oxygen atoms; the polyhedra form chains by corner-sharing only. Hence, although the Ca–O bonding holds adjacent sheets together in each structure, the packing is much more compact in the mineral. Both structures have probable hydrogen bonds from a hydroxyl ion of one sheet to an oxygen ion of an adjacent sheet, but the 2.76 Å bond in the mineral is obviously stronger than the longer 2.94 Å bond in the synthetic dimorph.

About the article

Published Online: 2010-07-28

Published in Print: 1970

Citation Information: Zeitschrift für Kristallographie, Volume 132, Issue 1-6, Pages 241–254, ISSN (Online) 0044-2968, ISSN (Print) 1433-7266, DOI: https://doi.org/10.1524/zkri.1970.132.1-6.241.

Export Citation

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

Marcus Silva, Earl F. O'Bannon, and Quentin Williams
American Mineralogist, 2018, Volume 103, Number 8, Page 1306
F. C. Hawthorne
Mineralogical Magazine, 2014, Volume 78, Number 04, Page 957
N. A. Yamnova, S. M. Aksenov, S. Yu. Stefanovich, A. S. Volkov, and O. V. Dimitrova
Crystallography Reports, 2015, Volume 60, Number 5, Page 649
Subrata Ghose
Reviews of Geophysics, 1975, Volume 13, Number 3, Page 81
Colin D. McMillen, Jared T. Stritzinger, and Joseph W. Kolis
Inorganic Chemistry, 2012, Volume 51, Number 7, Page 3953
N.R. Ivanov, L.A. Shuvalov, and O.A. Chikhladze
Physics Letters A, 1973, Volume 45, Number 6, Page 437
Elena L. Belokoneva *
Crystallography Reviews, 2005, Volume 11, Number 3, Page 151
C. L. Christ and Joan R. Clark
Physics and Chemistry of Minerals, 1977, Volume 2, Number 1-2, Page 59

Comments (0)

Please log in or register to comment.
Log in