  An attempt has been made to carry out a detailed analysis of quark mass
matrices having structure beyond the minimal texture. In particular, keeping in
mind, precision measurements of CKM parameters as well as refinements in the
ranges of light quark masses, we have examined the viability of all possible
combinations of hermitian texture 5 zero quark mass matrices. Interestingly,
one finds that all these possibilities are now excluded by the present quark
mixing data, thereby, having important implications for model building.
