#156

#156

P3m1

Example – Fencooperite, Ba6Fe3Si8O23(CO3)2Cl3 • H2O

Named for Joseph Fenimore Cooper, Jr. (1937-), mineral collector of Santa Cruz, California, USA.

The crystal structure of fencooperite: Unique [Fe3+3O13] pinwheels cross-connected by [Si8O22] islands

Grice J D
The Canadian Mineralogist 39 (2001) 1065-1071

 

CIF
http://rruff.geo.arizona.edu/AMS/download.php?id=06296.cif&down=cif

Fencooperite 

Ba (blue)
FeO5 tetragonal pyramids (dark red)
SiO4 tetrahedra (orange)
CO3 trigonal planer units (black)
Cl (green)

 

3D rotatable model of Fencooperite

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