The .vismat Material Collection contains 140 high quality .vismat materials for use with VRay for SketchUp and VRay for Rhino, most of which are new and not included in the standard 'Sample Materials' distribution.
A wide range of material types are included such as the following:
Architecture
Car Paint
Cloth
Emissive
Glass
Leather
Liquid
Marble
Metal
Misc
Plastic
Porcelain
Rubber
Stone
Wax
Wood
Free Download!
http://www.vray.com/free_vray_tools/vismat_material_collection/index.shtml