is a rare Sodium Beryllium Silicate with formula Na2BeSi2O6 and hardness of 6.
Is often associated with other rare minerals such as tugtupite. Is generally translucent and is rare to find clean crystals.Is fluorescent in green at short and long wave; this fluorescence is dure to Uranyl ions as impurity.
This stone here comes from Kvanefjeld,Narsaq, Greenland.
Size: 7x7x5 mm.
Weight: 1.57 ct.