Example – Ekanite, ThCa2Si8O20

Named for F.L.D. Ekanayake, of Colombo, Sri Lanka, who discovered the mineral.

A mineralogical study and crystal-structure determination of nonmetamict ekanite, ThCa2Si8O20

Szymanski J T, Owens D R, Roberts A C, Ansell H G, Chao G Y
The Canadian Mineralogist 20 (1982) 65-75




SiO4 tetrahedra (yellow)
ThO8 polyhedra (green)
CaO8 polyhedra (blue)

3D rotatable model of Ekanite

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