Genuine Persian blue salt has a mixture of white and pale to medium blue crystals. If the colour is extremely shiny or uniform, it’s likely dyed. The basic ingredients contain sea salt, Persian blue salt, or butterfly pea powder, and optional additions for instance baking soda or blue spirulina http://54719.eridan.websrvcs.com/System/Media/play.asp?id=54719&key=0DB1B355-1D22-46F3-A066-090557EBAD7A