We dissolve C-60, C-70 or C-84 molecules in benzene and change the fluid state from a gas-liquid two-phase region (25.0 degrees C) to the critical point (289.0 degrees C) and from the critical point to the original state (25.0 degrees C) along the gas-liquid coexistence curve. We find that particle-like and whisker-like nano/micro clusters, which are composed of C60 molecules, deposit on the surface of a silicon substrate placed vertically in C-60/benzene solution during the temperature change, whereas no appreciable clusters are detected on the silicon substrate in either C-70/benzene or C-84/benzene solutions. The clusters, in which fcc lattice structures are formed by C-60 molecules, remain stable in the solution. The present result suggests that C-60 molecules can be separated and extracted from a mixture of C-60, C-70 and C-84 molecules dissolved in benzene. (C) 2011 Elsevier B.V. All rights reserved.