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.

Supporting portions 2t and 2t of a rear portion 2z of an applying body holder 2 are advanced into an impregnated body 3 impregnated with a liquid L while a rear portion 4z of an applying body 4 having a plate shape and exhibiting capillarity is supported so as to be sandwiched or wrapped by the supporting portions 2t and 2t. The rear portion 4z of the applying body 4 can therefore be easily inserted into the impregnated body 3 without being bent, while protected by the supporting portions 2t and 2t. The liquid L in the impregnated body 3 is surely moved to the applying body 4, and the liquid L flows straight forward through an opening 2u at a rear end of the supporting portions 2t and 2t, so that the liquid L in the impregnated body 3 is moved smoothly.