Example – Stillwellite-Ce, (Ce,La, Ca)SiBO5

Named for Frank Leslie Stillwell (1888-1963), Australian ore mineralogist and the dominant Ce content.

The crystal structure of Stillwellite

Burns P C, Hawthorne F C, MacDonald D J, Ventura G D, Parodi G
The Canadian Mineralogist 31 (1993) 147-152





SiO4 tetrahedra (orange)
BO4 tetrahedra (pink)

3D rotatable model of Stillwellite-Ce

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