This material uses Tabulated Data from the SF57 Glass in the Schott Glass Material library transcribed to Indigo format by WytRaven, as found in this forum topic:
http://www.indigorenderer.com/forum/viewtopic.php?t=2838

This type of glass has a high refractive index and moderate dispersion giving it a very decorative look. It is generally used in fine crystal ware and wine glasses.

Because of the cauchy dispersion this glass might take some time to clear. You may also want to use Mlt BDir as the rendering method with this glass to catch all the pretty caustic reflections.