how to facet
gemstone main cabochon creation
min data

Mineral: cordierite
Gem: iolite
Cut: rectangular cut
Origin: unknown
General Info: The term iolie is from the Greek, "ion", and means violet. The name cordierite comes from the French geologist. Pierre Louis Cordier. The word dichroite comes from another Greek word meaning "two colored rock".
Additional Information
The cut stone was faceted by the author and positioned with the blue toward the crown of the stone. It is a rectangular antique cut. The other images show a single piece of rough oriented in three directions.

Here you can see the three distinct colors, one for each axis. The blue, yellow and colorless or gray color.