On the Symmetry of Optically Isotropic Modulated Lazurites from the Baikal Region

N. B. BOLOTINA, R. K. RASTSVETAEVA, G. CHAPUIS, A. SCHÖNLEBER, A. N. SAPOZHNIKOV, A. A. KASHAEV
  • Ferroelectrics, January 2004, Taylor & Francis
  • DOI: 10.1080/00150190490462478

Symmetry and Structure of Modulated Lazurites

What is it about?

The incommensurately modulated orthorhombic crystal structure of lazurite from the Baikal region is presented. It was solved in a pseudo cubic unit cell, a cub = 9.077(1) Å, and in the (3 + 2)D superspace group Pnn2(α α 0, α −α 0). The crystal is twinned with three components oriented along the [111] axis.

Why is it important?

In addition the structure was also refined with trigonal symmetry R3.

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http://dx.doi.org/10.1080/00150190490462478

The following have contributed to this page: Priv.-Doz. Dr. Andreas Schönleber