Laboratory mill and sample holder for a laboratory mill

A laboratory mill comprising:

• at least one sample holder for receiving at least one sample vessel;
• and
• at least one holding device, which is rotatable about an axis of rotation and/or arranged to oscillate about an axis of oscillation, for holding and carrying along the at least one sample holder during operation of the laboratory mill;
• wherein the at least one sample vessel is moved on an orbit with an effective radius during operation of the laboratory mill;
• wherein complementary coupling geometries are provided on the at least one sample holder and the at least one holding device for a positive coupling of the at least one sample holder to the at least one holding device;
• and
• wherein the at least one sample holder can be coupled to the at least one holding device via the coupling geometries in at least two different orientations relative to the axis of rotation and/or the axis of oscillation in order to change the effective radius of the orbit of the at least one sample vessel.