Sugilite can range in color from lilac (light purple) to a very dark purple. Most of the material found today is opaque. Sugilite that is translucent highly prized. Material that is dark purple and translucent (resembling grape jelly) is the rarest of the material and is sometimes faceted. The black areas in Sugilite are Manganese. Occasionally you will find some blue areas, this is Richterite (extremely rare). The orange/brown areas are Bustamite.