Berborite

Berborite is a beryllium with the chemical formula Be2(BO3)(OH,F)·(H2O). It is colorless and leaves a white streak. Its crystals are hexagonal. It is transparent and has vitreous luster. It is not radioactive. Berborite is rated 3 on the Mohs Scale

Berborite occurs in 1T, 2T, 2H polytypes

It was first described in 1967 for an occurrence in the Lupikko Mine, Ladoga Region Karelia Republic. It has also been reported from Tvedalen , Vestfold, Langesundsfjord, Norway It occurs in serpentine altered dolomite enriched in tungsten and boron with natrolite