This lovely greenish-blue Opal is great for stimulating thoughts and communication skills.  

Use over the fifth chakra to voice your opinions in a clear fashion.  It is about freedom of speech!  Some like to use this opal to connect with others.  I feel it to be a very creative stone, especially for writers and those who need to get their thoughts down on paper.  Some say this stone balances metabolism and helps those with fatigue. Vibrates to the number 5.  Freedom and travel.