Small cluster of fresh, platy crystals of this rare mineral in an albite vug. Other minerals present are aegirine, pectolite, neptunite, and traces of tugtupite. From the type locality
BO_154
1 Item
Data sheet
Locality
Kuannersuit, Ilimaussaq, Greenland
Size category
Small cabinet
Size (cm)
7.5x5x5
Weight
214 g
Formula
Na2BeSi4O10 · 4H2O
Properties
Colourless to cream coloured; fragile; thin platy crystals