I recently bought a specimen of nuummite, because of a suggestion Lynnette made. She told me it was an excellent "healing" stone. She was right, and using the stone has been very helpful to me. It is soothing and cool when I pick it up - and becomes warm and soothing very quickly. I'm using it for massage, and sleep with it in my hand. Do other members use rocks and crystals? If so, I would love to hear your experiences, and suggestions.