Crystallography Open Database

Information card for entry 9016335

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Structure parameters

Mineral name	Rankamaite
Formula	Al0.6 K1.26 Na2.22 Nb1.29 O31 Ta9.11
Calculated formula	Al0.6 K1.26 Na2.22 Nb1.29 O31 Ta9.11
Title of publication	Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, Brazil: Crystal chemistry and Rietveld refinement Note: Identification of OH not reported
Authors of publication	Atencio, D.; Contreira, R. R.; Mills, S. J.; Coutinho, J. M. V.; Honorato, S. B.; Ayala, A. P.; Ellena, J.; De Andrade, M. B.
Journal of publication	American Mineralogist
Year of publication	2011
Journal volume	96
Pages of publication	1455 - 1460
a	17.224 Å
b	17.687 Å
c	3.9361 Å
α	90°
β	90°
γ	90°
Cell volume	1199.1 Å³
Number of distinct elements	6
Space group number	21
Hermann-Mauguin space group symbol	C 2 2 2
Hall space group symbol	C 2 2
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
292100 (current)	2024-05-29	Inserting Z values into entries of range 9 that miss it	9016335.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.	9016335.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.	9016335.cif
120115	2014-07-12	Adding DOIs to range 9 structures.	9016335.cif
86000	2013-05-09	cif/ (saulius@koala.ibt.lt) Adding new mineral structures from AMCSD.	9016335.cif