We evaluate the continuum limit of the valence approximation to the mass of
scalar quarkonium and to the scalar quarkonium-glueball mixing energy for a
range of different quark masses. Our results answer several questions raised by
the proposed identification of f0(1710) as composed primarily of the
lightest scalar glueball.Comment: 3 pages, 2 PostScript figures, LATTICE98(spectrum), one reference
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