In Feng Shui Crystals like this beautiful specimen are used around the house in many ways, with a single objective, to create good Feng Shui energy. The word crystal was derived from the Greek wordKrystallos, meaning frozen light.
In History: Limestone is a part of the calcite family, limestone being the stone used to build the Egyptian pyramids, calcium carbonate has been used throughout the centuries and is an abundant crystal throughout the earth. With calcite making up a large portion of the earth's crust. Historically it has been used in powdered form for early paints and pigments. Calcite has also been used in the treatment of soils. this stone cleanses some of the damage our civilization has done to the earth, being used to combat the effects of pollution on the earth.
In Wicca: Clear Calcite is connected with the moon and the element of water aiding in: spirituality, meditation and scrying. aids to balance different parts of the psyche, emotions and grounding process.