Bergenite 's uranyl phosphate sheet is a new geometrical isomer of the group which differs in the orientation of the phosphate tetrahedra .
Bergenite 's uranyl phosphate sheet contains H O along with calcium and barium cations in the interlayer .
Bergenite 's uranyl phosphate sheet is a new geometrical isomer of the group which differs in the orientation of the phosphate tetrahedra , and contains H O along with calcium and barium cations in the interlayer .