Crystallography Open Database

Information card for entry 1521135

Preview

Coordinates	1521135.cif

Structure parameters

Chemical name	(Na0.82 K0.18) (Na1.84 Fe0.06 Ca0.08) (Mg3.09 Mn0.37 Fe0.65 Ti0.86 Al0.03) Si8 O22 (O1.54 (O H)0.46)
Formula	Al0.03 Ca0.08 Fe0.71 H0.46 K0.18 Mg3.09 Mn0.37 Na2.66 O24 Si8 Ti0.86
Calculated formula	Al0.03 Ca0.08 Fe0.71 K0.18 Mg3.09 Mn0.37 Na2.66 O24 Si8 Ti0.86
Title of publication	A new anhydrous amphibole from the Eifel region, Germany: description and crystal structure of obertiite, Na Na2 (Mg3 Fe(3+) Ti(4+)) Si8 O22 O2
Authors of publication	Hawthorne, F.C.; Cooper, M.A.; Grice, J.D.; Ottolini, L.
Journal of publication	American Mineralogist
Year of publication	2000
Journal volume	85
Pages of publication	236 - 241
a	9.776 Å
b	17.919 Å
c	5.292 Å
α	90°
β	104.05°
γ	90°
Cell volume	899.299 Å³
Number of distinct elements	11
Space group number	12
Hermann-Mauguin space group symbol	C 1 2/m 1
Hall space group symbol	-C 2y
Has coordinates	Yes
Has disorder	No
Has F_obs	No

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