Diam 80 mm weight 725 g This Sphere absorbs light and than in the dark stay luminescent four a very long time , very beautiful in any place in your house Most minerals fluoresce a single color. Other minerals have multiple colors of fluorescence. Calcite has been known to fluoresce red, blue, white, pink, green, and orange. Some minerals are known to exhibit multiple colors of fluorescence in a single specimen. It can protect one from negative energy of many kinds by wearing or carrying the stone, and is often sought for this shielding property. It is also helpful for removing energy blockages, and to clear the aura. strengthen romantic relationships, and expand the love and sexual experience, and cure depressions. Physically is used in general healing, purifying blood, to stimulate hormone production, and increase fertility. opens and clears the heart chakra, and will also activate and integrate all the chakras.