Spiritual Uses:  Calcite has a strong effect in speeding up development. This is particularly noticeable in small children but also in adults who need a boost of optimism and need to be reconnected to their inner child and  youth. Calcite is a stone of revelation. It helps us find our inner richness. It is especially harmonious with the water signs Cancer and Pisces. It can help them discover their hidden potential and their secret or unsatisfied desires. Capricorn will find a bit of much needed serenity and Virgo, Leo, Libra, and Sagittarius will appreciate both its stimulating and calming effects