  An alternative approach introducing a 3 dimensional Ricci scalar curvature
quantum operator given in terms of volume and area as well as new edge length
operators is proposed. An example of monochromatic 4-valent node intertwiner
state (equilateral tetrahedra) is studied and the scalar curvature measure for
a regular tetrahedron shape is constructed. It is shown that all regular
tetrahedron states are in the negative scalar curvature regime and for the
semi-classical limit the spectrum is very close to the Euclidean regime.
