Mineralogical Crystallography
Publications 1999

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Natrolite from the Bela ophiolite, Pakistan.
E. Gnos, K. Mahmood, M. Khan, A.S. Khan, Th. Armbruster.
J. Gemm. 26, 5, 308-312, 1998.

Si, Al ordering in the double-ring silicate armenite, BaCa2Al6Si9O30.2H2O: A single-crystal X-ray and 29Si MAS NMR study.
Th. Armbruster.
American Mineralogist, 84, 92-101, 1999.

Partially dealuminated heulandite produced by acidic REECl3 solution: A chemical and single-crystal X-ray study.
T. Wüst, J. Stolz, Th. Armbruster.
American Mineralogist, 84, 1126-1134, 1999. (full text - pdf)

The crystal structures of synthetic KSb5S8 and (Tl0.598, K0.402) Sb5S8 and their relation to parapierrotite (TlSb5S8).
P. Berlepsch, R. Miletich, Th. Armbruster.
Z. Kristallogr. 214, 57-63, 1999.

The crystal structure of a garnet solid solution (Ca0.9Mg0.1)3Al2[SiO4]3 at 295 K and 100 K: Local site behavior - dynamic and static disorder.
Ch.A. Geiger, Th. Armbruster.
Z. Kristallogr. 214, 211-215, 1999.

Na- and K-exchange experiments on laumontite.
T. Wüst, Th. Armbruster.
N. Jb. Miner. Mh. 1, 27-34, 1999.

Single-crystal X-ray structure refinement of cornwallite, Cu5(AsO4)2(OH)4: A comparison with its polymorph cornubite and the PO4-analogue pseudomalachite.
T. Arlt, Th. Armbruster.
N. Jb. Miner. Mh. 10, 468-480, 1999.

The crystal structure of vergasovaite Cu3O[(Mo,S)O4SO4], and its relation to synthetic Cu3O[MoO4]2.
P. Berlepsch, Th. Armbruster, J. Brugger, E.Y. Bykova, P.M. Kartashov.
Eur. J. Mineral. 11, 101-110, 1999.

Defect-Structure of Ytterbium(III) Doped Na2SO4 Phase I.
Th. Armbruster, R. Basler, P. Mikhail, J. Hulliger.
Journal of Solid State Chemistry, 145, 309-316, 1999.

Tobermorites: Their real structure and order-disorder (OD) character.
S. Merlino, E. Bonaccorsi, Th. Armbruster.
Amer. Miner. 84, 1613-1621, 1999. (full text - pdf)

Hydrogen-atom positions in P4/nnc Vesuvianite.
G.A. Lager, Q. Xie, F.K. Ross, G.R. Rossman, Th. Armbruster, F.J. Rotella, A.J. Schultz.
The Canadian Mineralogist 37, 763-768, 1999.

Cation exchange and channel-site preference in natural zeolites: heulandite and laumontite.
J. Stolz.

Strukturelle Untersuchung der temperaturabhängigen Entwässerung und Oxidation von Mn3+ Mineralien.
Th. Kohler.

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