Blue Ice Nephrite
Blue Ice Nephrite Jade –  The nearly transparent nephrite with the sweetest blue light effects has been termed blue ice and is exceptionally rare.  It is found as small portions and layers in the larger sugar jade boulders.

The stones cut from this material are translucent, showing a range of colors under different lights.  Stones appear icey blue to deep blue-green in reflected light and brilliant green from transmitted light.
Diffuse 20W white light shone from an oblique angle.
Normal yellow indoor light shone from directly above.
Diffuse 20W white light shone from behind.