Stone Type/Family: A member of the Calcite family, Carbonates ClassCrystal System: HexagonalChemical Composition: (CaCO3) Calcium CarbonateHardness: 2.5-3Color: Varying shades of OrangeLocation: Africa, Brazil, Czech Republic, Germany, India, Madagascar, Mexico, Romania, UK, USARarity: Very CommonFun Fact: Calcite is the primary mineral component in cave formations.These rocks are approximately 2".Not intended for children under 3.