  We report the discovery of a new metal-rich DAZ white dwarf, GD 362. High
signal-to-noise optical spectroscopy reveals the presence of spectral lines
from hydrogen as well as CaI, CaII, MgI, and FeI. A detailed model atmosphere
analysis of this star yields an effective temperature of Teff = 9740 +/- 50 K,
a surface gravity of log g = 9.12 +/- 0.07, and photospheric abundances of log
Ca/H = -5.2 +/- 0.1, log Mg/H = -4.8 +/- 0.1, and log Fe/H = -4.5 +/- 0.1.
White dwarf cooling models are used to derive a mass of 1.24 Mo for GD 362,
making it the most massive and metal-rich DAZ uncovered to date. The problems
related to the presence of such large metal abundances in a nearby (d ~ 25 pc)
white dwarf in terms of an accretion scenario are briefly discussed.
