This stone helps to keep you cool, calm and collected and also to ease pain, particularly arthritis. I bought this for a friend who is thinking of having it made into a pendant. She was widowed 18 months ago but has still to come fully to terms with her loss, although she is getting there. Now she is having a difficult time in recovering from a complete knee reconstruction. I am hoping that this will give her a little boost. It is however a lovely stone in its own right. I am thinking of buying one for myself now. I already have a rough cut blue lace agate which is quite pretty but shows up the layers as it has not been polished. A tumbled one would be nice to have as well I think.