Stone of Relaxation
A cabochon-cut Star Sapphire characteristically shows a six-rayed star, caused by needle-like “silk” inclusions that reflect and scatter light. Star Sapphires range from semitransparent to opaque, in many of the same colours as non-phenomenal Sapphires.
HARDNESS
9
Treatment
Heating, Irradiation.
COLOR
Same as Non-Phenomenal Sapphires.