#121

I-42m

Example – Jasmundite, Ca₂₂(SiO₄)₈O₄S₂

Named for Karl Jasmund, retired Director of the Mineralogical-Petrographic Institute, University of Cologne, Germany

The structure of Jasmundite, Ca₂₂(SiO₄)₈O₄S₂

Dent Glasser L S, Lee C K
Acta Cryst. B37 (1981) 803-806

http://www.webmineral.com/data/Jasmundite.shtml

CIF
http://rruff.geo.arizona.edu/AMS/download.php?id=10913.cif&down=cif

 

Ca (blue) – involved in three different coordination polyhedra (cube, octahedron, and distorted square pyramid)
SiO4 tetrahedra (orange)
O (red)
S (yellow)

3D rotatable model of Jasmundite

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