Calcite, also called limespar, is a very common rock-forming mineral. The word calcite comes from the Latin calx and the Greek chalix, which means lime. Calcite has more uses than almost any other mineral. It is used as a construction material (in the form of limestone and marble), pigment, agricultural soil treatment, pharmaceutical, acid neutralizer in the chemical industry and more. Calcite is an effective abrasive cleaning agent that will not harm kitchen and bathroom surfaces. High-grade optical calcite was used in World War II for gun sights, bomb sights and anti-aircraft weaponry. A specific form a calcite is used for calibration in mass spectrometry.
 
Calcite is commonly believed to increase and amplify energy--energy of healing, learning and awareness. Calcite is not only an oft-used cleanser in the material word, it is also believed to be a spiritual cleanser that changes perspective and renews commitment to making change. Calcite is also prized for its protection against negative energy as well as physical or psychological attacks.