  Majorana geometric representation of pure N-qubit states obeying exchange
symmetry is em- ployed to explore spin squeezing properties in the family of
states with two distinct spinors. Dicke states are characterized by two
orthogonal spinors and belong to this family - but they are not spin squeezed.
On the otherhand, those constituted by two non-orthogonal spinors exhibit spin
squeezing.
