Crystallography Open Database

Information card for entry 9002263

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Coordinates	9002263.cif
External links	AMCSD

Structure parameters

Mineral name	Obertiite
Formula	Al0.03 Ca2 Fe0.71 K0.18 Mg2.13 Mn0.37 Na2.66 O24 Si8 Ti0.86
Calculated formula	Al0.03 Ca2 Fe0.71 K0.18 Mg2.13 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, NaNa2(Mg3FeTi)Si8O22O2 Note: M1A and M1 are interchanged in the bond length table
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	10
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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