Crystallography Open Database

Information card for entry 9000468

Preview

Coordinates	9000468.cif
External links	AMCSD

Structure parameters

Mineral name	Biotite
Formula	Al1.999 K0.5 Mg2.001 O12 Si3
Calculated formula	Al1.999 K0.5 Mg2.001 O12 Si3
Title of publication	Mica polytypism: Dissimilarities in the crystal structures of coexisting 1M and 2M1 biotite
Authors of publication	Takeda, H.; Ross, M.
Journal of publication	American Mineralogist
Year of publication	1975
Journal volume	60
Pages of publication	1030 - 1040
a	5.329 Å
b	9.234 Å
c	20.098 Å
α	90°
β	95.09°
γ	90°
Cell volume	985.082 Å³
Number of distinct elements	5
Space group number	15
Hermann-Mauguin space group symbol	C 1 2/c 1
Hall space group symbol	-C 2yc
Has coordinates	Yes
Has disorder	No
Has F_obs	No

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