Quartz with some biotite inclusions and an a mazing rainbow quartz crystal are amazingly wonderful for clearing ones mind, and this sphere is perfect for crystal gazing meditation. Clear quartz is good for dispelling negativity, and stimulates the Crown Chakra. It is also an amazing stone for healing, because it can amplify healing vibrations within the body. It also improves awareness, amplifies intention, and promotes clarity and insight. Comes with a sphere stand. This is about 90 mm