Crystallography Open Database

Information card for entry 9015624

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Structure parameters

Mineral name	Alunite
Formula	Al2.916 H6.117 K0.876 Na0.071 O14.039 S2
Calculated formula	Al2.187 H4.58775 K0.657 Na0.05325 O10.5292 S1.5
Title of publication	Thermal expansion of alunite up to dehydroxylation and collapse of the crystal structure Note: T = 200 C
Authors of publication	Zema, M.; Callegari, A. M.; Tarantino, S. C.; Gasparini, E.; Ghigna, P.
Journal of publication	Mineralogical Magazine
Year of publication	2012
Journal volume	76
Pages of publication	613 - 623
a	6.9806 Å
b	6.9806 Å
c	17.425 Å
α	90°
β	90°
γ	120°
Cell volume	735.341 Å³
Number of distinct elements	6
Space group number	166
Hermann-Mauguin space group symbol	R -3 m :H
Hall space group symbol	-R 3 2"
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
292002 (current)	2024-05-23	Inserting missing Z values into entries of range 9	9015624.cif
201816	2017-10-06	cod/ Enhancement: marking COD entries that are known to be related to the AMCSD entries using the _cod_related_entry data loop.	9015624.cif
190590	2017-01-17	cif/9/01/ (antanas@echidna.ibt.lt) Adding the _atom_site_type_symbol data item in entries 9015096, 9015624, 9016102.	9015624.cif
176465	2016-02-16	cif/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in range 9.	9015624.cif
120115	2014-07-12	Adding DOIs to range 9 structures.	9015624.cif
86000	2013-05-09	cif/ (saulius@koala.ibt.lt) Adding new mineral structures from AMCSD.	9015624.cif