biotite, is there is enough water, should be the stable minerals. (fig. 3). Almandine I>ll3 end of tne lenBe extenclB into tne Be2. .. By molecular interchange the pezmatitic material waB removecl from the rocks and the dark minerals were arranged in directions re3emblinz po>ver-line3 arounci a maznetic lielcl. "Zurreitic.