the present invention uses a material that is not conventionally used in fountain pen nibs in order to provide a fountain pen nib that is completely different from the prior art . this found pen nib comprises one of corundum , topaz , emerald , and garnet as a main material . it is also possible to replace the heart hole and the slit of the nib with a groove that is added to the rear surface of the nib . by using one of the abovementioned gems as the main material in a faun - tain pen nib , it is possible to achieve wear resistance and chemical resistance in the fountain pen nib while imparting a luxurious feel and originality to a fountain pen .