Crystallography Open Database

Information card for entry 9005074

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Structure parameters

Mineral name	Pargasite
Formula	Al1.68 Ca0.198 Cr0.18 Fe0.21 H2 K0.02 Mg4.26 Na0.74 O24 Si6.62 Ti0.07
Calculated formula	Al1.68 Ca0.198 Cr0.18 Fe0.21 H2 K0.02 Mg4.26 Na0.74 O24 Si6.62 Ti0.07
Title of publication	Compressibility and high pressure structure refinement of tremolite, pargasite and glaucophane Sample: pressure at 35 kbar
Authors of publication	Comodi, P.; Mellini, M.; Ungaretti, L.; Zanazzi, P. F.
Journal of publication	European Journal of Mineralogy
Year of publication	1991
Journal volume	3
Pages of publication	485 - 499
a	9.733 Å
b	17.828 Å
c	5.24 Å
α	90°
β	105.6°
γ	90°
Cell volume	875.75 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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