Epididymite

Na2Be2Si6O15.H2O

This sample of epididymite is displayed in the Smithsonian Museum of Natural History. Epididymite is a silicate mineral of beryllium and sodium with the composition Na2Be2Si6O15.H2O. The samples at left are from Narsarsuuk, Tunugdliarfik, Greenland. The sample far left is about 3x3 cm.

Mindat: Epididymite

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