Here is a simple composition with really interesting stones. Blue chalcedony is a soft grey-blue color and I thought the little geodes were fascinating. Unfortunately, as is often the case with a simple necklace, I managed to get myself tangled up for months trying to use the stones effectively. I do hope you will decide the result was worthwhile. The stick pearls will flip around and generally misbehave, but that's why it's fun!
Melody and Hall agree blue chalcedony is a stone for healing dementia. Ahsian speaks of it feeling like a "deep inner ice cube on inflammations or wounds in the energy field."