In triaxial laboratory tests, variation of circumferential strain in dilatant granite may reach 100% or more at high stresses. Pseudoelastic compliances s13 and s23 in the plane perpendicular to the maximum stress may differ by a factor of 2--10. Given the magnitude of these differences, in situ azimuthal variation of dilatancy should be the observed rule rather that the exception. Such anisotropy might be exploited to determine the strike of a future fault break or the next site of fault motion.