Went and saw Disney's latest and really quite excellent film, Frozen, for the second time.  Thought I'd give rendering ice a try and here we have it.  Nothing special, but a good first effort.  It's an Architectural Material, using the Solid Glass Preset with a stone bump map applied to give it some roughness and an Index of Refraction of 1.31 (Ice's IOF).  

AuthorPaul Capon