Bonded rare earth magnets and the rare earth composition

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PROBLEM TO BE SOLVED : To provide a highly corrosion-resistant bond magnet and composition thereof which can be stably molded while keeping high magnetic characteristics. SOLUTION : A bond magnet or composition thereof obtained by molding a mixture of rare-earth alloy powder and resinous binder powder is characterized in that the resistivity of the bond magnet or the composition thereof meets the following condition. When the resistivity-magnetic powder density relationship is expressed on two dimensional coordinates, the resistivity is on a straight line obtained by connecting one point where magnetic powder density is 57 vol.% and resistivity is 200 Ω.cm to the other point where magnetic powder density is 90 vol.% and resistivity is 12 Ω.cm, or more than the straight line.