What gemstones change color like alexandrite?

1. What gemstones change color like alexandrite?  /by  Dominica Lachance  at Mar 16 2007,12:03 AM/
Several other well known gemstones, including diaspore, sapphire, garnet and spinel may also change color as a function of the light source
2. Re: Are there any other gemstones which change color?  /by  Dominica Lachance  at Jun 11 2007,2:06 AM/
Medium reddish purple tp dark very strongly bluish green color change garnet
3. Re: Are there any other gemstones which change color?  /by  Francisco Pizarro  at Jul 26 2007,12:07 PM/
Natural Bastnasite Color Change
4. Red color change garnet  /by  Michael Vanevski  at Sep 16 2008,2:09 AM/
Color change garnet
5. Colour change sapphire anyone?  /by  Marisa Spano  at Oct 26 2008,1:10 PM/
6. Devil stone?  /by  Ellen Jabo  at Mar 16 2009,2:03 AM/
Color changing zircon