Capillary rise of cyclohexane and water on graphite powder was measured in order to evaluate the interparticle pore network. The reduced diameter (d*) of the pore network was determined from the sorbed height of cyclohexane using Young-Laplace equation. The effectiveness of the d* value was examined by calculation of the contact angle of water on graphite powder surface from the sorbed height of water. It was clear that d* has serious relationship with the average pore width of this macro crystal model. Though we have a possibility to adopt the idea of d* on micropore system, the real meaning of d* is still not clear.