The prevailing exposition of the particle deposition mechanism in an evaporating droplet for self-assembly does not lead one to expect any deviation in deposition behavior to occur when two different particle types (of differing hydrophobicity) are used while keeping all other key parameters (i.e., particle concentration, particle size, and liquid volume) comparable. It is well known that if the contact angle that the droplet makes with the surface is sufficiently low a “coffee stain” pattern results, and that if the angle is sufficiently high few deposits are left behind except a dot at the center of the dried out droplet. We explore the behavior in the large intermediary region, and find that it depends strongly on particle properties. Droplet evaporation experiments conducted with micron sized polystyrene and silica particles on glass coated with silane suggest that the basic deposition mechanism outlined can be strongly influenced by a balance between capillary forces and the drag arising from flow patterns in the droplet, and interparticle capillary force factors.