Na₁₅Ca₆(Fe, Mn)₃Zr₃[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂

This sample of eudialyte is displayed in the Smithsonian Museum of Natural History. Eudialyte is a silicate that contains zirconium, manganese and chlorine and five of the big 8 elements of the Earth's crust. Its composition is Na₁₅Ca₆(Fe, Mn)₃Zr₃[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂. This sample of eudialyte is about 5x7 cm and is from Tunulliarjik, Greenland.

Mindat: Eudialyte