Calcite on Limestone Specimen

These incredible Limestone specimens feature unique reflective pieces of Calcite within. These Calcite on Limestone Specimen display a cool blue with translucent clusters of Calcite. Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite". How is calcite formed? Calcite can form by direct precipitation from waters rich in calcium. As concentrations increase or the amount of water decreases crystals of solid calcite crystals form. Calcite can also form in caves and where springs emerge on the surface Calcite metaphysically is believed to amplify thought, improve memory, and promote development. Limestone is commonly white to gray in color with a Mohs hardness being 2-4. Limestone that is unusually rich in organic matter can be almost black in color, while traces of iron or manganese can give limestone an off-white to yellow to red color. Limestone can be foun