Approximately 7cm in diameter.
The stunning combination of green from the prehnite and the black from the tourmalinated flecks through out the sphere creates a soothing energy but also a protective one as well.
Prehnite assists in dealing with feelings of unrest during times of constant change. It is also helpful for supporting the health of bones, teeth, hair and nails.
Prehnite also amplifies the ability to endure physically stressful situations over long periods of time.