Information card for entry 9016335
Mineral name |
Rankamaite |
Formula |
Al0.6 K1.26 Na2.22 Nb1.29 O31 Ta9.11 |
Calculated formula |
Al1.2 K2.52 Na4.44 Nb2.58 O62 Ta18.22 |
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 Fobs |
No |
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The link is:
https://www.crystallography.net/9016335.html