The present work is based on Biot-Savart law of magnetic anisotropy and also on magnetic field of current-carrying straight conductor in anisotropically magnetic medium solved from this law.

In this paper, a research on susceptibility anisotropy of artificial samples of magnetic sandstone, on which three kinds of strain are exerted in a weak magnetic field, is reported.

The anisotropy of rock magnetic susceptibility, caused by the oriented arrangement of magnetic minerals effected by then magnetic field, reflects the feature of the rock magnetic fabric.